Holley EFI

Intake mounting gasket sealing kit for use with throttle body part number 112-578.FeaturesPlug and play compatibility with all Terminator, HP, and Dominator ECU’s (w/ module P/N 554-130)No programming necessary; eliminates the need to install...

An EFI System so easy and powerful you'll think it's alive! Simply bolt it on, feed it a few basic answers and let Terminator EFI take control of your ride! FeaturesDesigned for GM LS Gen III and IV engines equipped with GM LS3/L92 cylinder...

HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main...

This harness is designed for LS1/6 Engines, from 1997-2004. This harness interfaces with 24x Crank and 1x Cam sensors.FeaturesCarburetor looks with the drivability of EFITrouble-free performance with today’s fuels - put an end to vapor lock and fuel...

The Holley GM 2x4 dual plane manifold is designed in the tradition of the great dual Holley 4160 induction systems that competed on drag strips, in Trans-Am at Lemans in the 1960's. The technology of the LS pushrod engine is now mated with the impressive...

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...

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...

Have you been hesitant on switching to EFI because you like the traditional look of a carburetor? Do you have a GM 4L60E/80E Transmission in your hotrod? There is no more need to worry! Holley has you covered with the new Terminator Stealth Throttle...

Bracket has allowance for throttle pedal adjustment or the addition of a nitrous plate. This bracket works with throttle cables from 1998-02 5.7L Camaro and Firebird (GM Part # 12563339). There is also an allowance of a cruise control cable from the...

The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used with Holley EFI, Sniper EFI, and Terminator X Tuning Software. Which can be downloaded for free from the Support section of our...

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...

Holley EFI Cam Sync Signal is designed to generate a cam sync input signal to the ECU when used in flying magnet cam trigger setups. This sensor is a Hall Effect sensor, meaning it outputs a square wave signal, which is ideal for use with most electronic...