Sale and Clearance

We are happy to announce all-new cast zinc pillar display mounts available for order now to offer a more permanent and vehicle specific mount for our CTS3 based devices. These mounts have been specifically engineered for an OEM look and fitment to...

Smoother airflow. Stronger materials. Cleaner engine bay. This Intake Bridge Kit is designed for 2011–2016 GMC Sierra and Chevrolet Silverado 2500/3500HD trucks equipped with the 6.6L Duramax LML. Featuring mandrel-bent aluminum tubing and CNC-mac...

Improve airflow and turbo response with a high-flow intake system built for the 6.4L Powerstroke. This Cold Air Intake Kit is designed for 2008–2010 Ford Super Duty trucks equipped with the 6.4L Powerstroke diesel engine. Featuring mandrel-bent al...

The Duramax Exhaust Manifold Kit is built for 2001–2016 Duramax 6.6L engines and delivers significant gains in airflow, turbo efficiency, and throttle response. With cast iron manifolds for strength and stainless-steel up-pipes for durability, thi...

Upgrade your 2004.5–2010 Chevrolet Silverado or GMC Sierra 2500/3500HD 6.6L Duramax with this 3" stainless steel downpipe. Built for durability and performance, this downpipe improves exhaust flow by 20% over stock, lowers engine bay temperatures ...

Upgrade your 6.6L Duramax with this 3" stainless steel downpipe, designed to outperform the restrictive factory unit. With a 20% increase in exhaust flow, this downpipe reduces EGTs, improves turbo spool, and boosts efficiency—whether you’re towin...

Upgrade your 2011–2015 Ford Powerstroke 6.7L with this high-performance Cold Side Intercooler Pipe. Replacing the restrictive factory pipe, this kit delivers smoother airflow, increased durability, and reduced risk of failure under heavy load or t...

Protect your 6.0L Powerstroke’s cooling system and extend engine life with this complete coolant filtration solution. The Ford Powerstroke 6.0L Coolant Filtration System is designed to safeguard your engine by removing harmful contaminants like ca...

Replace weak factory plastic with durable aluminum for stronger airflow, better reliability, and lasting performance. The Cold Side Intercooler Pipe for the 2017–2019 Ford F250 and F350 6.7L Powerstroke is engineered to withstand high boost pressu...

Boost performance and reliability with this passenger side up-pipe for 2001–2016 Duramax 6.6L engines. Featuring a larger 2" diameter and durable stainless steel construction, this up-pipe replaces the OEM pipe that often develops leaks at the bel...

Over time, contaminants like casting sand, metal shavings, and rust can build up in your coolant system. These particles can damage your water pump and clog small passages in the EGR and oil cooler. The 6.7 Powerstroke Coolant Filter Kit actively ...

Upgrade your 2003–2007 Ford Powerstroke 6.0L with the proven “Blue Spring” fuel pressure regulator kit. This simple yet effective modification increases fuel pressure to optimal levels, protecting injectors and ensuring consistent performance over...

Reduce EGTs & Protect Your Engine Eliminate one of the most common failure points in the 2007.5–2018 RAM Cummins 6.7L engine with this Grid Heater Delete Kit. By removing the stock grid heater, you eliminate the risk of bolt failure while impr...

High-flow durability upgrade for your Powerstroke. Replace your failure-prone factory up-pipe with the Black Bandit One-Piece Stainless Steel Turbo Y-Pipe. Designed for 2003–2007 Ford Powerstroke 6.0L trucks, this high-performance replacement enha...

This Cold Air Intake significantly improves airflow, boosting engine responsiveness and overall performance. Whether hauling, racing, or commuting, it delivers noticeable improvements in power and throttle response. Vehicle Compatibility 2003 For...

Streamline your tuning and diagnostics with the Dodge RAM Smart Access Cable, engineered for 2018+ Dodge, Jeep, RAM, and Chrysler models. This tool is essential for advanced ECU and TCM functions, including read, write, and special operations. It...

Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).Specs: Brand: Holley EFI Category: Air and Fuel Delivery Emission Code: 3 Harness Application: Universal Harness Type: Injector Part Type: Fuel Injection...

This is a service TPS sensor for several of our billet throttle bodies.Features: NHRA Pro Stock Replacement/Service part Included are connector and pins Black color Specs: Brand: Holley EFI Category: Emission Control Connector Gender: Male Emi...

Holley EFI Wiring Shop just keeps getting better! We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We have everything you need to build or service your H...

The best crimping tool available for making custom wiring harnesses. Constructed with a heavy-duty hardened steel frame with molded non-slip hand grips.Features: Dual-molding grips for ergonomic comfort Ratchet assembly assures a perfect crimp eve...

EFI fuel rails are machined for -8AN O-ring Fittings with passages large enough to accommodate high fuel flows and dampen pressure pulsations in the fuel system.Specs: Brand: Holley EFI Category: Air and Fuel Delivery Color: Black Emission Cod...

Holley EFI Wiring Shop just keeps getting better! We have one goal, to provide you a one stop solution for all of your wiring components needs. From connectors and pins to wire loom and tools! We have everything you need to build or service your H...

Official Holley EFI license plate…perfect addition to any vehicle when your state doesn't require a front state issued license plate. Also, great for the garage, man cave, she shed, or even cubical wall. High gloss graphics on embossed aluminum is...

Terminator X fuel injectors are dynamic flow matched within 1%, resulting in extremely precision and consistent injector characteristics. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly foun...