Holley EFI

Replacement fuel rail kits designed for the GM LS Series Lo-Ram intake manifolds with single injector per cylinder design. Finished in black anodizing, the high volume rails include the mounting hardware and have 3/4"-16 o-ring ports (8AN). The fuel...

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 powered...

Introducing Holley EFI ECU mounting brackets, allowing you to safely mount your ECU under the seat of a Foxbody Mustang.FeaturesDesigned for 4.8/5.3/6.0 Truck Engines with 24x Crank, 1x Cam and a Drive-By-Wire Throttle BodyReal-Time fuel map learn, takes...

Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes. Great for ECU diagnostics, firmware updating, or pre-configuring dash layouts without being in the vehicle. Harness has...

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...

Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They...

I/O Adapter w/Terminated Vehicle HarnessFeatures8mm Plug Wire SizeOffers low 350 Ohms per foot resistance while maintaining very high noise suppressionAvailable in three colors (Red ,Black, and Grey)Custom length to prevent wires from coming in contact...

Does your engine seem like it's out of breath? You can increase engine breathing with a Holley high-air-flow throttle body! Fully CNC machined from 6061 billet aluminum, these new Holley throttle bodies are designed to use the stock TPS and IAC to...

Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible "bounce" at low pulse widths as commonly found in other injectors. They...

1600 PSI Stainless Pressure SensorFeaturesDesigned for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder headsProvides best performance for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm,...

3 Port Boost Control Solenoid Valve Includes: (1) solenoid, (1) ECU pigtail harness with factory crimped ECU pin, (3) 3/16" barb fittings, (1) 1/8" NPT plug, (1) Sintered brass muffler. and (1) spare ECU pin for modified harness lengths...

Cam Sync Sensor Kit; Complete with Cam Sync Flying Magnet Target and Hall Effect Cam Sync Sensor; M12x1FeaturesDesigned for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder headsProvides best performance for forced...