Holley Performance

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winni...

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winni...

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winni...

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winni...

Take control of your GM Gen V LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winni...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have nearly unlimit...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Terminator X and X Max Coyote systems supports Ford Coyote platform with Ti-VCT.Terminator X features real-time fuel learn, high impedance injector drivers, integrated 1bar MAP sensor, and 4 programmable inputs and outputs. These are ideal for ele...

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, n...

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, n...

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more! Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, n...

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 pot...

The Terminator X Stealth 4500 EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning...