Holley EFI

An 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...

Holley is pleased to announce the arrival of our remote coil relocation brackets for all existing LS coil models, as well as for Holley EFI SmartCoils. These brackets are fabricated from lightweight aluminum and allow users to discreetly remote mount...

Introducing 2x4 Terminator Stealth EFI upgrade components. The wait is over. These upgrade components allow you to use your current Terminator Stealth EFI throttle body, install a new main harness, and slave throttle body, and you are finished. This...

Wanting to run a drive by wire throttle body on your 4150 flanged intake manifold? Tired of stretching, adjusting, or breaking throttle cables? Look no further than the new Holley EFI Billet Aluminum Throttle Body Adapters. These two new adapters will...

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...

316 Stainless steel weldment bungs for 1/4" EGT probes. These high-quality weld bungs feature a built-in step, which keeps the bung held in place during the welding process, ensuring a perfect weld.FeaturesMachined billet constructionClear/black...

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 for your GM LS engine comes complete with the main harness, power...

4" Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)Features6 inch daisy chain cable used to link together Holley EFI Analog Style CAN Gauges

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...

Throttle cable/Transmission kick down cable combination bracket for use with Terminator EFI.FeaturesTerminator X Stealth 4150 Kits for either 24x or 58x LS enginesSupports up to 650HP with Four 100lb./hr. InjectorsTerminator X Max kits provide plug and...

This is only used on applications using a CD Box, such as an MSD 6AL, while not using timing control.FeaturesBolt on 4150 Flange Carburetor ReplacementSupports up to 650HP with Four 100lb/hr InjectorsTerminator X Max Stealth 4150 kits provide...

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...