Performance Parts

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...

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...

Introducing EFI Engine Connector Kits - From Holley EFI. With the latest addition to our ever-expanding Wiring Shop, our goal was to provide you with every engine connector used on the Holley EFI main harnesses. If you are building a custom engine...

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...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

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...

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...

Designed to release and extract the terminals from the connector housing when wiring or repairing your vehicle. This de-pinning tool also includes 10 connector plugs to provide a weather proof and clean installation.Features: Metripack De-pinning ...

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...

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...

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...

This billet aluminum cover eliminates the MAP Sensor and works with most intake manifolds w/ the LS3 style MAP Sensor. Includes O-ring seal and mounting hardware.Specs: Brand: Holley EFI Category: Emission Control Emission Code: 5 Grade Type: ...

Bracket for 538-24 or 554-107Features:Genuine Holley Quality PartsSpecs: Brand: Holley EFI Category: Air and Fuel Delivery Color: Black Emission Code: 5 MAP Sensor: Bracket Product Type: MAP Sensor Tech Resources:

1 Bar sensor is used in many naturally aspirated applications.Features: 1 Bar Used for naturally aspirated applications Connector not included Black color Specs: Body Material: Composite Brand: Holley EFI Category: Air and Fuel Delivery Color:...

Sensor to be used in all forced induction applications up to 14.7 PSI.Features: 2 Bar Used for forced induction applications Included electrical connector with pins (3) pins Specs: Body Material: Composite Brand: Holley EFI Category: Air and Fu...

Preconfigured for Holley HP and Dominator systems, used in forced induction applications when a 2 or 3 Bar sensor is not sufficient for certain applications.Features: Stainless steel construction 0-345 kPa 3.5 Bar 1/8" - 27 NPT Linear voltage outp...

Introducing the Holley EFI Wiring Shop. 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 Holley EFI ...

This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8" ring terminals and shrink tube (not pictured) . The harness is fuse protected and covered in braided split loom for additional abras...

Main Engine harness intended for use with Terminator X, X Max, Terminator, HP, and Dominator ECUs when using a Terminator or Terminator Stealth style Throttle Body Injection unit on a Gen 4 58x LS engine. This harness has crank and cam sensor plug...