Holley EFI

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...

HEI Adapter HarnessFeaturesBolt on 4150 Flange Carburetor ReplacementSupports up to 1250HP with eight 100lb/hr InjectorsTerminator X Max Stealth 4150 kits provide transmission control for Pre-2009 GM 4L60E/4L80E Transmissions (Part numbers 550-1014,...

92mm Throttle Body flange (For use when fabricating a sheet metal topFeaturesSingle Channel CAN EGT Module, for a quick and easy installation with Holley EFI, Part Number 554-184CSingle Channel Analog Controller with unterminated output wires, to be used...

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...

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...

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...

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...

Holley Die Cast EFI Bypass Style Fuel Pressure Regulator Kits are part of a complete line of fuel system products from Holley. The included 12-882 regulator features a die cast aluminum body and a chrome top for corrosion resistance and good looks. The...

Dash bezels that are designed to work with the Holley EFI dashes. The bezels are made from a 5/32" thick UV-resistant ABS composite material. Structurally, these bezels are are as strong, or stronger than the OEM panels. The bezels come in a matte black...

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...

Service replacement digital dash harness. Features8mm Plug Wire Size Offers low 350 Ohms per foot resistance while maintaining very high noise suppression Available in three colors (Red ,Black, and Grey)36" long unterminated wires to allow for custom...

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...