Holley EFI

Service Secondary Throttle Body with Injectors. Intended to be used as a service component or when building a custom 4150 style 2x4 setup.FeaturesMade from a 5/32” thick UV-resistant ABS composite materialBezels are as strong, or stronger than the OEM...

The eight channel coil driver module is a "dumb coil" driver module that plugs into the main harness, which is needed when running the factory coils. Contains two 4-channel drivers, requires on an eight cylinder engine.FeaturesDesigned for GM LS Gen III...

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 Holley...

The Holley EFI Ignition Adapter Harness for FAST‚Ñ¢ Dual Sync Distributors allows easy connectivity of the Holley EFI wiring harness to the FAST‚Ñ¢ Dual Sync Distributors.FeaturesBolt on 2x4 4150 Flange Carburetor ReplacementSupports up to 1500 HP...

CAN Extension Harness (for Racepak and other external CAN drives)FeaturesAdd Even More Power to the Gen III Hemi Engine with a Holley Hi-Ram Intake ManifoldFits Gen III Hemi Engines w/ Large Intake Ports (1.70” Height x 1.88” Wide) – fits 2009-up 5...

Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial machine, or an autocross corner carver! The G-meter...

Introducing the Holley EFI Single Channel EGT Kits. Exhaust Gas Temperature data is critical information when your engine tune up is on the ragged edge. Knowing the exhaust temperature can help you identify potential horsepower left on the table, or pin...

O-Rings For Delphi and Holley top fed multi port injectors. Package of 16 0-rings.FeaturesOEM Quality Connectors and PinsPerfect for DIY or Wiring Specialists that want to build custom wiring harnesses any application

10 micron post filter with dual 3/8" barbs.Features1x80mm BoreClear Coat Finish

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 Holley...

An 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...

j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFIFeaturesBase manifold and rail kit for Ultra Low-Ram 300-621BK allows you to select your components individually as you build your intake systemDesigned...