Wiring & Plugs

Complete connector and pin kit for use with Holley EFI Stealth Ram Power Pack kit.Includes connector and pins for:Manifold Absolute Pressure (MAP) sensorIdle Air Control (IAC)Throttle Position Sensor (TPS)Coolant Temperature Sensor (CTS)Air Intake...

Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).

Dominator EFI GM Dual Drive-By-Wire Harness

The Holley Dominator ECU has built in capability to control the Drive-By-Wire throttle pedals and throttle bodies used on most Chrysler HEMI applications.

Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential...

Coil harness for 99-04 2 Valve Ford Modular (4.6 & 5.4L) Engines.

15' long sealed USB data cable

Coil harness for 99-04 4 Valve Ford Modular (4.6 & 5.4L) Engines.

Universal Ford V8 Harness Kit for Holley HP and Dominator ECU's

Injector upgrade harness for Terminator Throttle Body Systems. This harness is designed to be plug and play with our 205 lb/hr injector upgrade kit, Part Number 522-205.

Coil Harness for 2011 to 2015 Ford Coyote (5.0L) Engines

Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential...