{"title":"HP EFI","description":"\u003ch3 data-start=\"155\" data-end=\"217\" class=\"\"\u003e\u003cstrong\u003eHolley HP EFI – Pro-Grade Tuning for Serious Builds\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"219\" data-end=\"454\" class=\"\"\u003eTake control with \u003cstrong data-start=\"237\" data-end=\"254\"\u003eHolley HP EFI\u003c\/strong\u003e, the go-to system for \u003cstrong data-start=\"277\" data-end=\"318\"\u003ehigh-performance street and race cars\u003c\/strong\u003e. Supports \u003cstrong data-start=\"329\" data-end=\"382\"\u003eboosted, nitrous, LS, and multi-port applications\u003c\/strong\u003e, with full laptop tuning, data logging, and advanced engine management.\u003c\/p\u003e\n\u003cp data-start=\"456\" data-end=\"491\" class=\"\"\u003eTrusted by tuners. Built for power.\u003c\/p\u003e\n\u003cp data-start=\"493\" data-end=\"522\" class=\"\"\u003e\u003cstrong data-start=\"493\" data-end=\"522\"\u003eHarness the HP advantage.\u003c\/strong\u003e\u003c\/p\u003e","products":[{"product_id":"crank-cam-ign-harness-fully-terminated-harness-558-431","title":"Crank\/Cam Ign. Harness. Fully terminated harness.","description":"\u003cp\u003eThis fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w\/ the following products:\u003cbr\u003e\u003cbr\u003e554-118-HALL EFFECT CRANK TRIGGER SENSOR\u003cbr\u003e\u003cbr\u003e554-124-FERROUS TARGET CRANK SENSOR\u003cbr\u003e\u003cbr\u003e554-125-FLYING MAGNET CAMSHAFT SENSOR\u003cbr\u003e\u003cbr\u003e554-127-CAMSHAFT SENSOR W\/ FLYING MAGNET TARGET\u003cbr\u003e\u003cbr\u003e556-114-BBC CAM SYNC KIT W\/BRACKET\u003cbr\u003e\u003cbr\u003e556-119-SBC CAM SYNC KIT W\/BRACKET\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Ignition Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Crank - Cam Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Ignition Wire and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/50f8a2217f8a8e8f79c6ad7fcf0ca555058315d9.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 558-431_crank-cam_ignition_harness_diagram.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246790606941,"sku":"558-431","price":103.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/cacc44b27400209f9ab79cb3b98df825a59d8693.jpg?v=1753422312"},{"product_id":"ford-2v-and-4v-modular-main-harness-558-108","title":"Ford 2V \u0026 4V Modular Main Harness","description":"\u003cp\u003eMain harness for 99-04 2 \u0026amp; 4 Valve Ford Modular (4.6 \u0026amp; 5.4L) Engines.\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Main\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ford Modular Main Engine Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/cdd51c562e15df6f5ceb6a3c216674b86c810b06.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 558-108_ford_2v_and_4v_main_harness_diagram.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246802272349,"sku":"558-108","price":849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/23a66ebb7eae16b05a701a5314a9df3c02730b21.jpg?v=1753422196"},{"product_id":"ford-2v-modular-coil-harness-558-314","title":"Ford 2V Modular Coil Harness","description":"\u003cp\u003eCoil harness for 99-04 2 Valve Ford Modular (4.6 \u0026amp; 5.4L) Engines.\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Ignition Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ford Modular Coil Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Ignition Wire and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246802862173,"sku":"558-314","price":249.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/4ee1a6e72becc2a2ae8e16052ac07a51bc01b219.jpg?v=1753422195"},{"product_id":"ford-modular-2-valve-efi-harness-kit-558-505","title":"Ford Modular 2 Valve EFI Harness Kit","description":"\u003cp\u003eThis wiring harness interfaces a Holley EFI ECU to a 2V Modular Ford engine. It is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules. Most stock sensors are used with this harness.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1999-2004 Ford Modular 2 Valve\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eCan be used with Dominator and HP ECU's\u003c\/li\u003e\n\u003cli\u003eIncludes Main Power Harness, Ford Modular Main Harness, Ford V8 Injector Harness, Ford Modular 2V Coil Harness, and Coil Drivers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e 2v Ford Modular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.  This kit is meant to be used in conjunction with an injector harness, a coil harness, and ignition modules.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246806761565,"sku":"558-505","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/8bc3b997b8dbc4ebcaac60673027eac3e2a78c00.jpg?v=1753422172"},{"product_id":"ford-tfi-ignition-harness-558-305","title":"Ford TFI Ignition Harness","description":"\u003cp\u003eFord TFI Ignition Adapter Harness\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Ignition Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Harnesses\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Ignition Wire and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/33d529ee3f5e15cf142e2c4fed0588d7d715cdc8.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10538.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246807220317,"sku":"558-305","price":133.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/eb0804431a333978e3907ea7a2c55445a289a0a8.jpg?v=1753422168"},{"product_id":"ford-v8-injector-harness-558-209","title":"Ford V8 Injector Harness","description":"\u003cp\u003eFord V8 Injector Harness for HP EFI \u0026amp; Dominator EFI\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ford EV1 Style Injector Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246807416925,"sku":"558-209","price":265.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/f46e0d179b4374698cbcc84477967e38f46ee6e2.jpg?v=1753422166"},{"product_id":"ford-v8-injector-harness-558-212","title":"Ford V8 Injector Harness","description":"\u003cp\u003eFord V8 Injector Harness for Ford USCAR \/ EV6 style Fuel Injectors (Evenly Spaced)\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ford EV6 Style Injector Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246807613533,"sku":"558-212","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/5ee2ce0a65febe570f33ec5c42e3007cab7141f0.jpg?v=1753422164"},{"product_id":"ford-v8-injector-harness-558-213","title":"Ford V8 Injector Harness","description":"\u003cp\u003eFord V8 Injector Harness for Jetronic \"Bosch\" style Fuel Injectors (Evenly Spaced)\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ford EV1 Style Injector Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246807744605,"sku":"558-213","price":212.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/436facd10511d75e23422adb8ab117c4b16e68b8.jpg?v=1753422163"},{"product_id":"gen-iii-hemi-coil-harness-early-coils-558-310","title":"Gen III HEMI Coil Harness - Early Coils","description":"\u003cp\u003eChrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck and car line. Fortunately the two coils are very different visually and makes for a simple review. If the coil requires spark plug wires, it is the early coil. If the coil does not require plug wires and simply has two boots that connect to the plugs in the cylinder head, it is the later coil. View the image gallery for images of both types.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Ignition Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HEMI Coil Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Ignition Wire and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eFor coils that require spark plug wires.  The HEMI's Variable Valve Timing is not supported by the Holley EFI systems at this time. You can run an engine that is equipped with VVT, but the cam timing will revert to the mechanical default. The Holley R\u0026amp;D team is working on an accessory harness that will drive the VVT actuator.  However, it is not available at this time.   The HEMI's Multi-Displacement System (MDS) was primarily designed for fuel economy purposes and does not need to be connected when switching to a Holley EFI system.   NOTE: Not legal for sale or use on pollution controlled vehicles.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/gen3hemiselectionguide.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGen III HEMI EFI Selection Guide\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a27472c15298291e83e3a6c3daa30e82f800b85a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10695.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/db83c069a3efe064b886937dc3ff28f0b63df175.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - gen3hemiselectionguide.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246809514077,"sku":"558-310","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/96defc7d7eb6f1c498d3a08553027581674fc96c.jpg?v=1753422139"},{"product_id":"gen-iii-hemi-coil-harness-late-coils-558-311","title":"Gen III HEMI Coil Harness - Late Coils","description":"\u003cp\u003eChrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck and car line. Fortunately the two coils are very different visually and makes for a simple review. If the coil requires spark plug wires, it is the early coil. If the coil does not require plug wires and simply has two boots that connect to the plugs in the cylinder head, it is the later coil. View the image gallery for images of both types.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Fuel Injection - EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HEMI Coil Harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eFor coil-on-plug with no spark plug wires.  The HEMI's Variable Valve Timing is not supported by the Holley EFI systems at this time. You can run an engine that is equipped with VVT, but the cam timing will revert to the mechanical default. The Holley R\u0026amp;D team is working on an accessory harness that will drive the VVT actuator.  However, it is not available at this time.   The HEMI's Multi-Displacement System (MDS) was primarily designed for fuel economy purposes and does not need to be connected when switching to a Holley EFI system. NOTE: Not legal for sale or use on pollution controlled vehicles.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/gen3hemiselectionguide.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGen III HEMI EFI Selection Guide\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a27472c15298291e83e3a6c3daa30e82f800b85a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10695.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/db83c069a3efe064b886937dc3ff28f0b63df175.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - gen3hemiselectionguide.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246809940061,"sku":"558-311","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/a480197708658eadf36649df3734b1ee4e80c8a2.jpg?v=1753422138"},{"product_id":"gen-iii-hemi-main-harness-late-w-tps-and-idle-air-control-connections-558-116","title":"Gen III HEMI Main Harness , Late, w\/TPS and Idle Air Control Connections","description":"\u003cp\u003eGen III HEMI Harness with TPS and Idle Air Control Connections. This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant to be used in conjunction with an injector harness, a coil harness, and two ignition modules. Most stock sensors are used with this harness. There are two optional connectors for interfacing with CAN-based Holley modules.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGen III Hemi Main Harness with IAC motor wiring\/connector and TPS wiring\/connector\u003c\/li\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Main\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Not Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Not Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Hemi Main Engine Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNote: The TPS and IAC connectors are designed for Holley 4 BBL style throttle bodies. If you are using a different throttle body, you may have to change the pins and connectors.  When using the 558-116 Harness you MUST use a Chrysler 514-9230-AA Crank Sensor. This sensor MUST be used when utilizing a 60-2 Ignition Strategy. This sensor is standard on 2009-12 Chrysler\/Dodge\/Jeep applications and is a direct replacement sensor for 2013+ engines.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/86668788eab21d9221ea433d03bafdb2cdba148a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10909rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/991432e2a11a760051d4c87c270cd2e7c640964e.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 558-116_gen_iii_hemi_main_harness_diagram.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efdeb3fa927f998424ed396e299f2e024fee9556.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199R12543 (1).pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246810169437,"sku":"558-116","price":849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/f7b3a92d59b770b229f2200959a2e1abba8d613c.jpg?v=1753422134"},{"product_id":"gen-iii-hemi-main-harness-early-w-tps-and-idle-air-control-connections-558-115","title":"Gen III Hemi Main Harness, Early, w\/ TPS and Idle Air Control Connections","description":"\u003cp\u003eGen III HEMI Harness with TPS and Idle Air Control Connections.\u003cbr\u003e\u003cbr\u003eThis wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant to be used in conjunction with an injector harness, a coil harness, and two ignition modules. Most stock sensors are used with this harness. There are two optional connectors for interfacing with CAN-based Holley modules.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGen III Hemi Main Harness with IAC motor wiring\/connector and TPS wiring\/connector for a manual throttle body application\u003c\/li\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Main\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GEN III HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Not Included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Hemi Main Engine Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTE: The TPS and IAC connectors are designed for Holley 4 BBL style throttle bodies.  If you are using a different throttle body, you may have to change the pins and connectors.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/86668788eab21d9221ea433d03bafdb2cdba148a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10909rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a3527da3e24a2bc557eb90c1fedae6ebd4462d73.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 558-115_gen_iii_hemi_main_harness_diagram.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efdeb3fa927f998424ed396e299f2e024fee9556.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199R12543 (1).pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246810234973,"sku":"558-115","price":899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/87d746bd1ece9cba26a9951ab71ae6b60e9ee577.jpg?v=1753422133"},{"product_id":"gen-iii-hemi-v8-injector-harness-bosch-jetronic-and-holley-injectors-558-211","title":"Gen III HEMI V8 Injector Harness - Bosch\/Jetronic and Holley injectors","description":"\u003cp\u003eAn Injector Harness is required and Holley offers two. The harness with USCAR\/Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic\/Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HEMI Injector Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eThe HEMI's Variable Valve Timing is not supported by the Holley EFI systems at this time. You can run an engine that is equipped with VVT, but the cam timing will revert to the mechanical default.   The HEMI's Multi-Displacement System (MDS) was primarily designed for fuel economy purposes and does not need to be connected when switching to a Holley EFI system.   NOTE: Not legal for sale or use on pollution controlled vehicles.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/gen3hemiselectionguide.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGen III HEMI EFI Selection Guide\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/db83c069a3efe064b886937dc3ff28f0b63df175.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - gen3hemiselectionguide.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246810398813,"sku":"558-211","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/a7a54feaed8e235515fac37e44e173a8765014b8.jpg?v=1753422132"},{"product_id":"gen-iii-hemi-v8-injector-harness-stock-uscar-style-injectors-558-210","title":"Gen III HEMI V8 Injector Harness - Stock\/USCAR style injectors","description":"\u003cp\u003eAn Injector Harness is required and Holley offers two. The harness with USCAR\/Stock injector connectors will cover most applications that are using the factory injectors. The other harness is for the Bosch and Holley (or Jetronic\/Minitimer) injector connector that is commonly used in aftermarket applications for larger injectors. View the image gallery to see images of both types of injectors.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTake control of your Gen III HEMI with Holley EFI by controlling fuel and spark.  Great for power upgrades and engine swaps.\u003c\/li\u003e\n\u003cli\u003eCapable of tuning with power adders such as nitrous, superchargers or turbos and compatible with methanol and water injection\u003c\/li\u003e\n\u003cli\u003eHarnesses are available to connect to a Gen III HEMI engine for the most advanced fuel and timing controls available\u003c\/li\u003e\n\u003cli\u003eEach Harness is designed in fit and function specifically for the Gen III HEMI engine platform\u003c\/li\u003e\n\u003cli\u003eAll wiring is TXL grade copper wiring with minimal weight, high temp sleeve in a small diameter\u003c\/li\u003e\n\u003cli\u003eFactory style terminations provide a strong, secure connection\u003c\/li\u003e\n\u003cli\u003eConnectors are OEM grade for a correct, positive fit\u003c\/li\u003e\n\u003cli\u003eEach harness is routed through a split-loom braid for protection and great looks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e HEMI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HEMI Injector Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eThe HEMI's Variable Valve Timing is not supported by the Holley EFI systems at this time. You can run an engine that is equipped with VVT, but the cam timing will revert to the mechanical default. The Holley R\u0026amp;D team is working on an accessory harness that will drive the VVT actuator.  However, it is not available at this time. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThe HEMI's Multi-Displacement System (MDS) was primarily designed for fuel economy purposes and does not need to be connected when switching to a Holley EFI system. \u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eNOTE: Not legal for sale or use on pollution controlled vehicles.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/gen3hemiselectionguide.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGen III HEMI EFI Selection Guide\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/db83c069a3efe064b886937dc3ff28f0b63df175.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - gen3hemiselectionguide.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246810529885,"sku":"558-210","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/2899796dc2edbce5612cedf0f07948ca762250da.jpg?v=1753422130"},{"product_id":"gm-58x-efi-harness-kit-558-501","title":"GM 58X EFI HARNESS KIT","description":"\u003cp\u003eAn EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVGM LS2\/LS3\/LS7\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eWorks with Dominator and HP ECU's\u003c\/li\u003e\n\u003cli\u003eIncludes Main Power Harness, LS2 Main Harness, and LSX injector harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e LSX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/e820ccdd79f4cd2fdd4effcc8806004e9e6c375a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10836.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246811349085,"sku":"558-501","price":949.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/ceeb74dcdb5ca4729bec0f42cc18a798c3654c0d.jpg?v=1753422127"},{"product_id":"gm-ls-24x-efi-harness-kit-558-500","title":"GM LS 24X EFI HARNESS KIT","description":"\u003cp\u003eAn EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit for your GM LS engine comes complete with the main harness, power harness and injector harness to support your primary system!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHarness Kit Includes; Main Power Harness, LS1 Main Harness \u0026amp; V-8 Injector harness\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eWorks with HP or Dominator ECU's\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e LSX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/e820ccdd79f4cd2fdd4effcc8806004e9e6c375a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10836.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246811611229,"sku":"558-500","price":1065.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/ca9fee4747600dd04adf549afcd38bad5a26c83a.jpg?v=1753422126"},{"product_id":"gm-ls-58x-efi-harness-kit-558-502","title":"GM LS 58X EFI HARNESS KIT","description":"\u003cp\u003eAn EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHarness Kit Includes; Main Power Harness, LS2 Main Harness \u0026amp; V-8 Injector harness\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eWorks with HP or Dominator ECU's\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e LSX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/e820ccdd79f4cd2fdd4effcc8806004e9e6c375a.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10836.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246811906141,"sku":"558-502","price":999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/fc5a03647180e96a5a44ccbdc7d1619b733233ac.jpg?v=1753422125"},{"product_id":"gm-tpi-and-stealth-ram-efi-harness-kit-558-503","title":"GM TPI and Stealth Ram EFI Harness Kit","description":"\u003cp\u003eAn EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFull harness kit\u003c\/li\u003e\n\u003cli\u003eSimple Installation\u003c\/li\u003e\n\u003cli\u003eWorks with Dominator and HP ECU's\u003c\/li\u003e\n\u003cli\u003eIncludes Stealthram\/TPI Main Harness, Main Power Harness, V8 Injector Harness, HEI Ignition Harness, Ignition Adapter, and Tach Input\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e GM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e CD Ignition (No Timing Control)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase a ECU and O2 Sensor to make this a complete kit.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/032b3bf88c32bc73b04fa087810c66244262203d.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10837.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246812430429,"sku":"558-503","price":899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/f9673726c94440e6b1ac39a58e5b4c8b65fe69b7.jpg?v=1753422121"},{"product_id":"hp-efi-ecu-554-113","title":"HP EFI ECU","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger, scalable axes, smoothing, multiple graph view ability, rpe-defined notes fields and more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control, Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS) outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost; requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tubing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoast Guard Approved:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP ECU- ECM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eWhen utilizing a Transbrake, it is highly recommended to install our Transbrake input protection device. P\/N 554-128. This will protect the ECU from any flyback voltage when the transbrake is released.  Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.  Certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246932590685,"sku":"554-113","price":2099.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/1cd6a7822ed6c535334080c4dc3855d6e26da927.jpg?v=1753420885"},{"product_id":"hp-efi-ecu-and-harness-kits-550-601","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost, or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM),  Boost vs RPM, Boost vs Speed, Launch control.  Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.\u003cbr\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246932623453,"sku":"550-601","price":2749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066.jpg?v=1753420883"},{"product_id":"hp-efi-ecu-and-harness-kits-550-601n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost, or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM),  Boost vs RPM, Boost vs Speed, Launch control.  Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified   to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for   Ignition Protection \u0026amp; Fire Resistance.      Holley HP EFI systems are equipped with 4 programmable inputs and 4   programmable outputs that are ideal for most vehicles with a single power   adder. This feature allows the user to configure the system to support a wide   range of controls including boost control, progressive nitrous, water\/meth   injection, speed inputs, fuel pump control, AC inputs, timing retard inputs   and various other uses. When selecting an ECU, users need to ensure their   planned controls can be run with the 4 inputs and 4 outputs as certain   combinations may use more I\/Os than are available. If more I\/Os are required,   users should choose the Dominator VMS.  Software and firmware updates can be  downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246932656221,"sku":"550-601N","price":2999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_580b702a-8daf-4903-a1f8-be0de8fdaa0f.jpg?v=1753420882"},{"product_id":"hp-efi-ecu-and-harness-kits-550-602","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too! Stop re-flashing your factory ECU every time you make a performance modification. Get Holley EFI today!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS1\/LS6 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software and and Bosch wideband 02 sensor designed to be used with GM LS1\/LS6 engines with factory GM coils and a 24 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touchscreen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS. Software and firmware updates can be downloaded here for free\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0dae1185a6d22c2d4a875c430aed26cb2e381bcb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10676rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/9fe165fc31f59d39261b824808ebc8c95d07a878.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10675.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246933508189,"sku":"550-602","price":2849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_63994b06-e925-46cc-a31a-968b8e8434fc.jpg?v=1753420880"},{"product_id":"hp-efi-ecu-and-harness-kits-550-602n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too! Stop re-flashing your factory ECU every time you make a performance modification. Get Holley EFI today!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS1\/LS6 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software and and NTK wideband 02 sensor designed to be used with GM LS1\/LS6 engines with factory GM coils and a 24 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eThe NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust temperatures and forced induction applications or for highest precision feedback\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touchscreen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 24x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0dae1185a6d22c2d4a875c430aed26cb2e381bcb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10676rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/9fe165fc31f59d39261b824808ebc8c95d07a878.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10675.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246933540957,"sku":"550-602N","price":3099.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_57f0eb02-ca77-4f59-a3be-7d1961f030cd.jpg?v=1753420878"},{"product_id":"hp-efi-ecu-and-harness-kits-550-603","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS2\/LS3\/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software, USCAR (EV6 Style) injector connectors, and Bosch wideband O2 sensor, designed to be used with GM LS2\/LS3\/LS7 engines with factory GM coils and a 58 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touch screen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e USCAR (EV6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS.   Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/91fbc95f9d18fadb5d3760df3e43e4ffa475b960.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10597rev2.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246933868637,"sku":"550-603","price":2849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_ebe4bbab-cb4e-4c58-85ee-bc495eb136bd.jpg?v=1753420876"},{"product_id":"hp-efi-ecu-and-harness-kits-550-603n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS2\/LS3\/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software, USCAR (EV6 Style) injector connectors, and NTK wideband O2 sensor, designed to be used with GM LS2\/LS3\/LS7 engines with factory GM coils and a 58 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eThe NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touch screen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e USCAR (EV6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246934163549,"sku":"550-603N","price":3099.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_aaa5088a-faf1-4054-88b4-33b1ea4d3e53.jpg?v=1753420874"},{"product_id":"hp-efi-ecu-and-harness-kits-550-604","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.  Custom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935277661,"sku":"550-604","price":2749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02cf5f0256efd8c51c4d4694adc11593d154bb96.jpg?v=1753420870"},{"product_id":"hp-efi-ecu-and-harness-kits-550-604n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.  Custom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS. Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935375965,"sku":"550-604N","price":2999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/6f393f9daf40140038f69743192a58de46dc40ce.jpg?v=1753420867"},{"product_id":"hp-efi-ecu-and-harness-kits-550-605","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM),  Boost vs RPM, Boost vs Speed, Launch control.  Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tuning precision unmatched in the industry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS. Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935408733,"sku":"550-605","price":2749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/af5786c6ccf7ac5a47362a338acee6f07b642a2b.jpg?v=1753420864"},{"product_id":"hp-efi-ecu-and-harness-kits-550-605n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK sensors\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eIncludes NTK Wideband Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, GM HEI Small Cap, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e EFI System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is   certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements   for Ignition Protection \u0026amp; Fire Resistance. Holley HP EFI systems are   equipped with 4 programmable inputs and 4 programmable outputs that are ideal   for most vehicles with a single power adder. This feature allows the user to   configure the system to support a wide range of controls including boost   control, progressive nitrous, water\/meth injection, speed inputs, fuel pump   control, AC inputs, timing retard inputs and various other uses. When   selecting an ECU, users need to ensure their planned controls can be run with   the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are   available. If more I\/Os are required, users should choose the Dominator VMS.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935441501,"sku":"550-605N","price":2999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/5ce1196c8b434e1bb6be40e2dfacbddb34444857.jpg?v=1753420859"},{"product_id":"hp-efi-ecu-and-harness-kits-550-606","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tu\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eIf utilizing FORD OEM TPS and IAC sensor, must wire in Ford connector  (not supplied) \t ECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.   Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.   Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/9fe165fc31f59d39261b824808ebc8c95d07a878.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10675.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935474269,"sku":"550-606","price":2749.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/d1602ae27e1c7e3c42372381723b747885006d2d.jpg?v=1753420857"},{"product_id":"hp-efi-ecu-and-harness-kits-550-606n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are designed to be used with popular factory EFI engines as an alternative to the factory ECU and harness or as a replacement for your C950 ECU. The HP allows you to accurately control the fuel and ignition of your engine along with additional controls for nitrous, boost or water meth.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow\u003c\/li\u003e\n\u003cli\u003eIncludes NTK wideband oxygen sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Coil - (No Timing Control), Ford TFI, Holley Dual Sync Distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.   Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.   Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0dae1185a6d22c2d4a875c430aed26cb2e381bcb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10676rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/9fe165fc31f59d39261b824808ebc8c95d07a878.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10675.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246935539805,"sku":"550-606N","price":2999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/5a45f055f89e573b5ffcc3741482f1441d0078aa.jpg?v=1753420855"},{"product_id":"hp-efi-ecu-and-harness-kits-550-607","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS2\/LS3\/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software, Jetronic\/Minitimer (Bosch style) injector connectors, and Bosch wideband O2 sensor, designed to be used with GM LS2\/LS3\/LS7 engines with factory GM coils and a 58 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touch screen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.\u003cbr\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/hpefifeatures.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHP EFI Features\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246936686685,"sku":"550-607","price":2849.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_6ae3339b-1018-4efb-bdef-c9aede310e10.jpg?v=1753420854"},{"product_id":"hp-efi-ecu-and-harness-kits-550-607n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water\/meth? This HP EFI kit can control that too!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSimple Installation - Plug and Play control of GM LS2\/LS3\/LS7 engines. Just plug the harness into your factory sensors, wire the power and grounds and you are ready to take complete control of your LS engine\u003c\/li\u003e\n\u003cli\u003eMore Functionality - Provides significantly more functionality than OEM or other competitive ECUs (boost control, nitrous control, water\/meth injection, plus a host of additional inputs and outputs to control fans, pumps, relays etc.)\u003c\/li\u003e\n\u003cli\u003eEasy To Use - Laptop programmable ECU includes a variety of base maps that will have you hitting the cruise or track in no time\u003c\/li\u003e\n\u003cli\u003eIdeal For Everything - including stock 5.3L engine swaps or all out, 3,000+ horsepower race cars that need a simple and powerful ECU and harness solution\u003c\/li\u003e\n\u003cli\u003eIndustry Leading Self Tuning Fuel Strategy - means less time tuning and more time enjoying the power of your LS vehicle\u003c\/li\u003e\n\u003cli\u003eKit includes ECU, harness, communication cable, software, Jetronic\/Minitimer (Bosch style) injector connectors, and NTK wideband O2 sensor, designed to be used with GM LS2\/LS3\/LS7 engines with factory GM coils and a 58 tooth crank sensor\u003c\/li\u003e\n\u003cli\u003eThe NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eOptional plug and play hand-held programmer, 5.7\" touch screen and digital gauges are available for ultimate control and vehicle monitoring\u003c\/li\u003e\n\u003cli\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance\u003c\/li\u003e\n\u003cli\u003eFor a full list of advanced features such as boost, nitrous, water\/meth, individual cylinder control and more click the document icon under the product image!\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrank Reluctor:\u003c\/strong\u003e 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e GM LS 58x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Conversion Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Service Kits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTraction Control Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.   Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.   Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/b5197024df33d6d598aab7e4729f92d2807a8f97.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - hpefifeatures.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246936948829,"sku":"550-607N","price":3099.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/02abf349a18ec0d60e9129d6dd18a48e14a98066_4326e39e-8588-4716-a517-7bc6308cab07.jpg?v=1753420852"},{"product_id":"hp-efi-ecu-and-harness-kits-550-616","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for 1999-2004 Ford Modular 2 Valve Engines\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory sensors, Crank, Cam, TPS, Coolant Temp, etc\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory actuators, Coils, Injectors, IAC\u003c\/li\u003e\n\u003cli\u003eConnectors for Holley Fuel Pressure and Oil Pressure sensors\u003c\/li\u003e\n\u003cli\u003eConnectors for expanded Inputs and Outputs\u003c\/li\u003e\n\u003cli\u003eComplete plug and play kit includes HP ECU, Bosch Wideband O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Ford Mod Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e 2v Ford Modular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.  ECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.   Software and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246937243741,"sku":"550-616","price":3299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/321de798e7eb8da40a0e0d70248a492b3b0176b5.jpg?v=1753420851"},{"product_id":"hp-efi-ecu-and-harness-kits-550-616n","title":"HP EFI ECU and Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for 1999-2004 Ford Modular 2 Valve Engines\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etc\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory actuators; Coils, Injectors, IAC\u003c\/li\u003e\n\u003cli\u003eConnectors for Holley Fuel Pressure and Oil Pressure sensors\u003c\/li\u003e\n\u003cli\u003eConnectors for expanded Inputs and Outputs\u003c\/li\u003e\n\u003cli\u003eComplete plug and play kit includes HP ECU, NTK Oxygen sensor, MAP sensor, Coil Drivers and all necessary Harnesses\u003c\/li\u003e\n\u003cli\u003eThe NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Ford Mod Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e 2v Ford Modular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246937538653,"sku":"550-616N","price":3549.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/104ab7adad1df6e828cad3ea0c60d1f1a79ace22.jpg?v=1753420849"},{"product_id":"hp-efi-ecu-and-harness-kits-550-617","title":"HP EFI ECU and Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for 1999-2004 Ford Modular 4 Valve Engines\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory sensors; Crank, Cam, TPS, Coolant Temp, etc\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory actuators; Coils, Injectors, IAC\u003c\/li\u003e\n\u003cli\u003eConnectors for Holley Fuel Pressure and Oil Pressure sensors\u003c\/li\u003e\n\u003cli\u003eConnectors for expanded Inputs and Outputs\u003c\/li\u003e\n\u003cli\u003eComplete plug and play kit includes HP ECU, Bosch Wideband O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Ford Mod Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e 4v Ford Modular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246937800797,"sku":"550-617","price":3299.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/5d8aa218f1b7d893d6eccb7109561ac6740cfbcd.jpg?v=1753420848"},{"product_id":"hp-efi-ecu-and-harness-kits-550-617n","title":"HP EFI ECU \u0026 Harness Kits","description":"\u003cp\u003eLooking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Is your cam too wild for a MAF? Power adders? You name it, and Holley EFI can handle it.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned specifically for 1999-2004 Ford Modular 4 Valve Engines\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory sensors, Crank, Cam, TPS, Coolant Temp, etc\u003c\/li\u003e\n\u003cli\u003ePlug and play with factory actuators, Coils, Injectors, IAC\u003c\/li\u003e\n\u003cli\u003eConnectors for Holley Fuel Pressure and Oil Pressure sensors\u003c\/li\u003e\n\u003cli\u003eConnectors for expanded Inputs and Outputs\u003c\/li\u003e\n\u003cli\u003eComplete plug and play kit includes HP ECU, NTK O2 sensor, MAP sensor, Coil Drivers and all necessary Harnesses\u003c\/li\u003e\n\u003cli\u003eThe NTK Oxygen Sensor is recommended when using leaded or methanol fuels, high exhaust and forced induction applications or for highest precision feedback\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e Ford Mod Motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e 4v Ford Modular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e HP EFI Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eHolley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\u003cbr\u003eSoftware and firmware updates can be downloaded here for free.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/3e031ad86c7985381d2c0ceda84b4a6fd33ebc6f.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r12028.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/f4406892e09b6c9b05db8266dca8711f3ba294c0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10724rev1.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246937833565,"sku":"550-617N","price":3549.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/8c5a226e6a1b1bc851d9cf3058d73cd11d702c68.jpg?v=1753420846"},{"product_id":"hp-efi-universal-mpi-retrofit-kits-550-500","title":"HP EFI Universal MPI Retrofit Kits","description":"\u003cp\u003eDo you have a Mopar, Ford, or other type engine you want to install multi-port fuel injection on? The Holley HP universal retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold. The HP universal retrofit kits also come with the necessary wiring, ECU, sensors and throttle body. We give you the option to select the fuel pump and injectors of choice for full customization based on your setup.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM), Boost vs RPM, Boost vs Speed, Launch control. Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS) outputs capable of directly driving “Smart” ignition coils or Holley DIS coils. Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control. Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandheld Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdle Air Control Motor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e CD Ignition (No Timing Control)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Universal Multi Port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Fuel Injection System and Related Components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminator LS Options:\u003c\/strong\u003e Fuel, Spark\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eThe following sensors are included: TPS - IAC - MAP - CTS - MAT - Wideband O2 ECU is certified to ISO 8846, SAE J1171 and United States Coast Guard Requirements for Ignition Protection and Fire Resistance. Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS. Software and firmware updates can be downloaded on Holley's website for free.\u003cbr\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning, data-logging or can be used as an easy to see graphical gauge panel.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/082457ec937111d4c30a957bdc51b84c522b53c7.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10072rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a1c162d048acd561c381ef90292e1418f5aaacda.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - crank-camsensorreq.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a7d0ffe0257175ef494a5722bf7ef2707ce78f13.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10510rev.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246938685533,"sku":"550-500","price":3949.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/e582bd8992095d78cf1138f5711f37a85af2a3cd.jpg?v=1753420843"},{"product_id":"hp-efi-universal-mpi-retrofit-kits-550-501","title":"HP EFI Universal MPI Retrofit Kits","description":"\u003cp\u003eDo you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal  MPI retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs and un-machined fuel rails so you can modify to fit any single plane 4bbl intake manifold.  The HP universal retrofit kits also come with the necessary wiring, ECU, sensors and throttle body. Just select the fuel pump and injectors of choice and you are off and running.\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNEW V2 SOFTWARE FEATURES\u003c\/li\u003e\n\u003cli\u003e“Quick Start” ignition and fueling strategy for LS x Engines\u003c\/li\u003e\n\u003cli\u003eData Logger. Scalable axes, Smoothing, Multiple graph view ability, Pre-defined notes fields and many more\u003c\/li\u003e\n\u003cli\u003eStrip Chart Real-Time Data Viewer\u003c\/li\u003e\n\u003cli\u003eIntegrated Boost Control - Boost vs Time, Boost vs Gear (Time or RPM),  Boost vs RPM, Boost vs Speed, Launch control.  Boost launch builder, Over-boost safeties, Boost scramble\u003c\/li\u003e\n\u003cli\u003eTraction Control - Power reduction via timing, nitrous percentage or boost (Requires Davis Technologies Holley Module)\u003c\/li\u003e\n\u003cli\u003e“Quick Start” fueling for all engines\u003c\/li\u003e\n\u003cli\u003eOption for VE based fueling strategy\u003c\/li\u003e\n\u003cli\u003eFuel Map and Learn Function Smoothing\u003c\/li\u003e\n\u003cli\u003eConfigurable User Password Protection\u003c\/li\u003e\n\u003cli\u003eFully Configurable lap top Gauge Panel\u003c\/li\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cli\u003eOptional 5.7” full-color touchscreen LCD allows easy on-the-fly tuning,data-logging or can be used as an easy to see graphical gauge panel\u003c\/li\u003e\n\u003cli\u003eEight sequentially driven 8:2 peak and hold injector drivers, capable of driving up to 16 low or high impedance injectors as a standard feature. Multiple staged injector strategies\u003c\/li\u003e\n\u003cli\u003eEight channel Distributorless Ignition (DIS)outputs capable of directly driving “Smart” ignition coils or Holley DIS coils.  Will drive 2 wire coils with the addition of PN 554-112 high current coil driver module\u003c\/li\u003e\n\u003cli\u003ePlug and Play control of factory GM 24x and 58x LSx engines\u003c\/li\u003e\n\u003cli\u003eIntegrated single channel wide band oxygen sensor control.  Works with NTK or Bosch sensors\u003c\/li\u003e\n\u003cli\u003eInternal data-logging standard with a huge 2GB of memory\u003c\/li\u003e\n\u003cli\u003e4 Stage progressive nitrous control\u003c\/li\u003e\n\u003cli\u003eTurbo boost control\u003c\/li\u003e\n\u003cli\u003eIntegrated Water\/Methanol injection control\u003c\/li\u003e\n\u003cli\u003eSelf-tuning fuel table strategy greatly simplifies tuning process\u003c\/li\u003e\n\u003cli\u003eIndividual cylinder fuel and spark control allows you to unlock your engine’s potential\u003c\/li\u003e\n\u003cli\u003eWorks with 4, 6, 8 cylinder engines\u003c\/li\u003e\n\u003cli\u003eUnique lb\/hr based fueling strategy greatly simplifies and commonizes tuning\u003c\/li\u003e\n\u003cli\u003eAdvanced idle, closed loop, and enrichment strategies allow for very stable operation\u003c\/li\u003e\n\u003cli\u003eECU is fully potted and can be mounted in the engine compartment or interior\u003c\/li\u003e\n\u003cli\u003eSealed automotive and marine grade connectors\u003c\/li\u003e\n\u003cli\u003eAllows for use of common OEM sensors as well as customer sensor calibration input\u003c\/li\u003e\n\u003cli\u003eIgnition Plug and Play with GM 24x and 58x LSx engines, GM HEI, Ford TFI, magnetic and hall effect trigger, and other ignition systems. New Plug and Play applications in process.\u003c\/li\u003e\n\u003cli\u003eCustom settings can be configured to allow many other applications\u003c\/li\u003e\n\u003cli\u003e1-5 Bar MAP sensor capability\u003c\/li\u003e\n\u003cli\u003eTwo channel knock control sensor Inputs for both one or two wire knock sensors\u003c\/li\u003e\n\u003cli\u003eDedicated fuel and oil pressure inputs\u003c\/li\u003e\n\u003cli\u003eControls both stepper and PWM Idle Air Control (IAC) motors\u003c\/li\u003e\n\u003cli\u003eSpeed density, Alpha-N, or combination fueling strategies\u003c\/li\u003e\n\u003cli\u003e4 Programmable high or low Pulse Width Modulated (PWM) outputs and 4 fully configurable inputs can be configured for use\u003c\/li\u003e\n\u003cli\u003e4 Stage nitrous oxide control\u003c\/li\u003e\n\u003cli\u003eFully featured nitrous control eliminates the need for a separate nitrous controller device\u003c\/li\u003e\n\u003cli\u003eCan be configured “Wet” or “Dry” with closed loop feedback\u003c\/li\u003e\n\u003cli\u003eProgressive control based on time, RPM, or boost, requires part # 554-111\u003c\/li\u003e\n\u003cli\u003eLean or rich safety cutoff\u003c\/li\u003e\n\u003cli\u003eFull timing retard\/control configurability per stage based on RPM or time\u003c\/li\u003e\n\u003cli\u003eUses Holley Water\/Meth solenoids specially designed and calibrated for use with this EFI system to allow the user to enter Water\/Meth flow as a percentage of fuel injector flow for Water\/Meth tu\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerometer Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoost Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN-BUS Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Per Cylinder Ignition Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatalogging Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistributor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ee85 Support:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEGT Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForced Induction Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Filter Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hose Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Injectors Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pressure Regulator Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Pump Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade Type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdle Air Control Motor Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Timing Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual Cylinder Fuel Corrections:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Manifold Included:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKnock Retard Support:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hardware Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Stage Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Universal Multi Port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgressive Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Tuning:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Fuel Injection System and Related Components\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle Position Sensor Included:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser-Tuneable:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWet Nitrous Control:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eThe following sensors are included: TPS - IAC - MAP - CTS - MAT - Wideband O2  ECU is certified to ISO 8846, SAE J1171 \u0026amp; United States Coast Guard Requirements for Ignition Protection \u0026amp; Fire Resistance.   Holley HP EFI systems are equipped with 4 programmable inputs and 4 programmable outputs that are ideal for most vehicles with a single power adder. This feature allows the user to configure the system to support a wide range of controls including boost control, progressive nitrous, water\/meth injection, speed inputs, fuel pump control, AC inputs, timing retard inputs and various other uses. When selecting an ECU, users need to ensure their planned controls can be run with the 4 inputs and 4 outputs as certain combinations may use more I\/Os than are available. If more I\/Os are required, users should choose the Dominator VMS.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/082457ec937111d4c30a957bdc51b84c522b53c7.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10072rev.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a1c162d048acd561c381ef90292e1418f5aaacda.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - crank-camsensorreq.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/a7d0ffe0257175ef494a5722bf7ef2707ce78f13.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10510rev.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246938718301,"sku":"550-501","price":4999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/a106f9b6a4aa0e9e432abae63ad9730d2a5d7e87.jpg?v=1753420840"},{"product_id":"universal-4-ev14-cylinder-injector-harness-558-440","title":"Universal 4 EV14 Cylinder Injector Harness","description":"\u003cp\u003eThis Universal 4 Cylinder EV14 Injector Harness is designed to be plug and play with HP EFI \u0026amp; Dominator EFI Systems, utilizing our 205 LB\/HR Injector Set - Part Number 522-205.\u003c\/p\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Bosch\/EV14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Injector Harness - Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246960214109,"sku":"558-440","price":126.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/a81e6c4c2eed518debd6ec4a07f8674383ebf5e2.jpg?v=1753420626"},{"product_id":"universal-6-cylinder-injector-harness-558-203","title":"Universal 6 Cylinder Injector Harness","description":"\u003cp\u003eUniversal 6 Cylinder Injector Harness for HP EFI \u0026amp; Dominator EFI\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eTerminated and ready for plug and play injector connections\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Type:\u003c\/strong\u003e Injector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Injector Harness - Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003e\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246962507869,"sku":"558-203","price":225.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/a86b86397d38951a336dcdd1c8ce610633646a60.jpg?v=1753420620"},{"product_id":"universal-v8-mpfi-efi-harness-kit-558-504","title":"Universal V8 MPFI EFI HARNESS KIT","description":"\u003cp\u003eAn EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!\u003c\/p\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHarness Kit Includes; Main Power Harness, Universal MPFI Main Harness, v-8 Injector Harness\u003c\/li\u003e\n\u003cli\u003eSimple installation\u003c\/li\u003e\n\u003cli\u003eWorks with HP or Dominator ECU's\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecs:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Holley EFI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Air and Fuel Delivery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmission Code:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarness Application:\u003c\/strong\u003e Ford, GM, Universal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e CD Ignition (No Timing Control)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInjector Connector:\u003c\/strong\u003e Jetronic \/ Minitimer (Bosch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Fuel Injection Harness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Harness Kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub Category:\u003c\/strong\u003e Wire, Cable and Related Components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTech Resources:\u003c\/h3\u003e\u003cp\u003eNOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.\n\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/efi_selection_chart62914.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEFI selection chart\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/032b3bf88c32bc73b04fa087810c66244262203d.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - 199r10837.pdf\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/\/documents.holley.com\/0b8eaa8389d9d1b734a4a0d96bfbaddb00469e16.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions - techlibrary_199r10555rev16.pdf\u003c\/a\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":43246964342877,"sku":"558-504","price":899.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1618\/5607\/files\/3c308370123e29111cabc7a21f31ce52b152d644.jpg?v=1753420605"}],"url":"https:\/\/jsspeedshop.ca\/collections\/performance-hp-efi.oembed?page=3","provider":"JS Speedshop","version":"1.0","type":"link"}