CANBUS INPUT/OUTPUT MODULE

The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X Max EFI installation. This CAN module will add eight inputs and eight outputs to the system, which can be used to control additional...

CRANK/CAM IGN. HARNESS. FULLY TERMINATED HARNESS.

This fully terminated harness is compatible with HP and Dominator ECU's and is plug and play w/ the following products: 554-118-HALL EFFECT CRANK TRIGGER SENSOR 554-124-FERROUS TARGET CRANK SENSOR 554-125-FLYING MAGNET CAMSHAFT SENSOR 554-127-CAMSHAFT...

DOMINATOR EFI AUXILIARY HARNESS

Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with pre-crimped ECU pins

GM 58X EFI HARNESS KIT

An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector...

GM DBW HARNESS

Designed to work with GM Throttle body P/N's - 12570790 and 12580760 Designed to work with GM Throttle Pedal P/N - 10379038

GM LS 58X EFI HARNESS KIT

An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector...

HOLLEY EFI 2 AXIS G-METER

Introducing the Holley EFI 2 Axis G-Meter. Designed to be stable in the harshest environment. Co-Designed with RACEPAK, this G-meter would be a perfect fit for your four digit horsepower drag radial machine, or an autocross corner carver! The G-meter...

HOLLEY LS HARNESS

LSx Injector Harness for HP EFI, Dominator EFI and Terminator X.

HP SMART COIL HARNESS

HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory GM LSx coil harnesses, but plug into Holley HP Smart Coils. They plug into Holley LSx plug and play main...

HYPERSPARK HARNESS

Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104. Features: Used to run a "timed sequential" fuel strategy, with Holley EFI V5 Build 160 or Later, or Terminator...

J1A CONNECTOR

Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or Wiring Specialists that want to build custom wiring...

J1B CONNECTOR

Introducing J1A through J4 Connectors Kits so you no longer have to buy a complete connector kit if you only need one I/O connector Features: OEM Quality Connectors and Pins Perfect for DIY or Wiring Specialists that want to build custom wiring...