Holley EFI Systems & Harnesses

Holley

Holley- HP EFI ECU & Harness kit for a Ford V8 w/NTK o2 Sensor

Holley HP EFI ECU and harness kits allow you to manage automotive functions—like the fuel and ignition of your engine, along with controlling nitrous, boost, or water/methanol. Select the model with...

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$2,749.95

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Holley- HP EFI ECU & Harness kit for a Ford V8

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are...

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$2,499.95

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Holley- HP EFI ECU & Harness - Universal Multi Point System

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

MSRP:

$2,499.95

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Holley- HP EFI ECU & Harness w/ Terminated Harness

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

MSRP:

$2,499.95

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Holley - TERMINATOR X FORD MOD MOTOR 4V KIT (EV1 Injectors)

Introducing Terminator X and X Max Kits for the Modular Ford engine. These new kits will plug and play with either 2V or 4V Mod Motors commonly found in 1996-2004 Mustangs, 1995-2006 F150, or...

MSRP:

$1,883.95

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Holley - TERMINATOR X FORD MOD MOTOR 4V KIT (EV6 Injectors)

Introducing Terminator X and X Max Kits for the Modular Ford engine. These new kits will plug and play with either 2V or 4V Mod Motors commonly found in 1996-2004 Mustangs, 1995-2006 F150, or...

MSRP:

$1,883.95

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Holley

Holley- LS Coli Harness

Includes a pair of coil harnesses for an 8 cylinder engine Similar to factory GM LSx coil harnesses For use with Holley HP or Dominator ECU

MSRP:

$241.95

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Holley- EFI TFI Ignition Harness

Need to adapter your holley EFI system to a TFI Ignition? This is the harness you need! Works great with 1987-1995 Mustangs!

MSRP:

$115.95

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Holley- Dominator EFI Auxiliary Output Harness

For Holley Dominator EFI Auxillary Output Harness Dominator EFI Connector J2B Auxiliary Harness

MSRP:

$161.95

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Holley- Dominator EFI Auxiliary Input Harness

For Dominator EFI System Dominator EFI Connector J2A Auxiliary Harness

MSRP:

$210.95

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Holley- EFI Dominator ECU

Works with 4, 6, 8 and 10 cylinder engines Ignition Plug and Play with GM LS engines (non-VVT), GM HEI, Ford TFI, and magnetic and hall effect trigger. Custom settings can be configured to allow...

MSRP:

$2,299.95

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Holley- EFI Modular Injector Harness ( Jetronic / EV1 )

Injector harness for Holley EFI standalones. Injectors evenly spaced and setup for any modular engine. Works with EV1 style injectors (typically found in 1987-2004 Mustangs).

MSRP:

$181.95

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Holley- EFI Modular Injector Harness ( USCAR / EV6 )

Injector harness for Holley EFI standalones. Injectors evenly spaced and setup for any modular engine. Works with EV6 style injectors (typically found in 2005+ Mustangs).

MSRP:

$172.95

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Holley- EFI Modular Main Harness

Main harness for Holley EFI standalone. Setup to use sensors on a modular engine. Works with both Holley HP and Dominator.

MSRP:

$750.95

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Holley- Eight Channel Coil Driver Module (Modular / Coyote)

The eight channel coil driver module is a "dumb coil" driver module that plugs into the main harness, which is needed when running the factory coils. Contains two 4-channel drivers, requires on an...

MSRP:

$287.95

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