Holley EFI - 558-501
Fuel Injection Wire Harness; For Use w/HP Or Dominator; Incl. Main Harness/LS2 Harness/LSX Injector Harness; For Use w/LS2/LS3/LS7 w/58 Tooth Crank Sensor; USCAR/EV6 Injector;
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 harness to support your primary system!
- Simple Installation
- Works with HP or Dominator ECU's
- Harness Kit Includes; Main Power Harness, LS2 Main Harness & LSX Injector harness