Holley EFI

The 558-456 wiring kit is intended to fully populate all of the inputs and outputs for PNs 553-111 and 553-112 Pro Dashes. These can easily be inserted into the existing 34 pin dash connector. It contains loose wires and 2 and 3 conductor cable...

Package of 8 aluminum injector bungs for EV1 type injectorsFeaturesMade from a 5/32” thick UV-resistant ABS composite materialBezels are as strong, or stronger than the OEM panelsBezels come in a matte black finish that will accent your...

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...

Designed to extend your factory coil harness, allowing you to easily remote mount your LS ignition coils. These 36" long ignition coil extension harnesses are perfect for anyone wanting to remote mount their ignition coils off of the valve covers in...

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 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...

The 20-154 throttle bracket is designed specifically for the Lo-Ram 300-621 front-feed intake manifold using the 105mm throttle bodies. The bracket design has allowance for throttle pedal adjustment or the addition of a nitrous plate. This bracket works...

Service Primary Throttle Body Sub Harness for Terminator Stealth 4150Features4500 Units Contain 8 Injectors, and Support up to 1500 HP Naturally Aspirated or 1250 HP with Forced Induction2.125” Throttle Plates, Flow 1440 CFM for Large Cubic Inch...

Coil harness for 99-04 2 Valve Ford Modular (4.6 & 5.4L) Engines. FeaturesBolt on 2x4 4150 Flange Carburetor ReplacementSupports up to 1500 HP Naturally Aspirated or 1250 HP Forced Induction with Eight 100 Lb/Hr InjectorsInternal 1bar MAP sensor, built...

Replacement throttle body for Stealth Terminator EFI kit. Includes all sensors. Easy replacement, just swap the harness from your original throttle body and bolt it on.FeaturesMade of UV-resistant ABS composite for durabilityAvailable in black, brushed...

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...

Holley is pleased to announce the continuing evolution of its very successful analog-style gauges with the release of new 3-3/8" and 4-1/2" speedometers and tachometers to complement our 2-1/16" gauge line. These are designed specifically for use with...