HP ECU & Harness

HP ECU & Harness

These Holley EFI HP ECU and Harness Kits give you a huge assist in getting your custom EFI installation done. By coupling the incredible HP ECU along with the power, main, ignition, injection, and other required harnesses for these popular applications, you can move forward on your project with confidence.

Note: All are available with your choice of Bosch or NTK wideband O2 sensors. Choose the Bosch sensor for applications that will never use racing gasoline or experience excessively high turbo conditions. In those cases, choose NTK.

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HP ECU and Harness Kit, GM LS1/LS6, with Bosch Sensor

By now you have already figured out that Holley provides unparalleled support for the various GM LS..

$1,914.95 $1,766.95

HP ECU and Harness Kit, GM LS1/LS6, with NTK Sensor

By now you have already figured out that Holley provides unparalleled support for the various GM LS..

$2,078.95 $1,917.95

HP ECU and Harness Kit, GM LS2/3/7, with Bosch Sensor

By now you have already figured out that Holley provides unparalleled support for the various GM LS..

$1,914.95 $1,766.95

HP ECU and Harness Kit, GM LS2/3/7, with NTK Sensor

By now you have already figured out that Holley provides unparalleled support for the various GM LS..

$2,078.95 $1,917.95

HP ECU and Harness Kit, GM LS2/3/7, Bosch Inj, with Bosch Sensor

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control t..

$1,914.95 $1,766.95

HP ECU and Harness Kit, GM LS2/3/7, Bosch Inj, with NTK Sensor

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control t..

$2,078.95 $1,917.95

HP ECU and Harness Kit, GM TPI and Holley Stealth Ram, with Bosch Sensor

This HP EFI ECU and Harness Kit is designed to make upgrade from the factory GM fuel injection on GM..

$1,851.95 $1,707.95

HP ECU and Harness Kit, GM TPI and Holley Stealth Ram, with NTK Sensor

This HP EFI ECU and Harness Kit is designed to make upgrade from the factory GM fuel injection on GM..

$2,007.95 $1,852.95

HP ECU and Harness Kit, Ford Modular 2V, Jetronic Injectors, Bosch Sensor

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately co..

$1,999.95 $1,844.95

HP ECU and Harness Kit, Ford Modular 2V, Jetronic Injectors, NTK Sensor

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately co..

$2,162.95 $1,994.95

HP ECU and Harness Kit, Ford Modular 4V, Jetronic Injectors, Bosch Sensor

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately co..

$1,999.95 $1,844.95

HP ECU and Harness Kit, Ford Modular 4v, Jetronic Injectors, NTK Sensor

Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately co..

$2,162.95 $1,994.95

HP ECU and Harness Kit, Ford Coyote, USCAR Injectors, Bosch Sensor

Looking for a plug and play kit for your Ford Coyote engine? The HP ECU allows you to accurately con..

$2,055.95 $1,896.95

HP ECU and Harness Kit, Ford Coyote, USCAR Injectors, Bosch Sensor

Looking for a plug and play kit for your Ford Coyote engine? The HP ECU allows you to accurately con..

$2,217.95 $2,045.95

HP ECU and Harness Kit, Ford MPFI, with Bosch Sensor

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a re..

$1,807.95 $1,667.95

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