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 for your GM LS engine comes complete with the main harness, power harness and injector harness to support your primary system! Features: Harness Kit Includes; Main Power Harness, LS1 Main Harness & V-8 Injector harness Simple Installation Works with HP or Dominator ECU's Holley EFI MPFI Kits, Harness Kit, Ls1/6, 24X, Bosch/Jetronic Injector, Part #558-500. Tick Performance is proud to be a warehouse distributor for the entire Holley product line. If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance!
All warranty questions, claims or otherwise should be directed toward the manufacturer
