GM 58X EFI HARNESS KIT - 558-501 2WD Notes: This system fits all

Notes: This system fits all 2/4 WD and all Wheelbases

4L V8 1973 Chevrolet Monte Carlo Landau 454/7

7 V8 2009 GMC Yukon XL 1500 SLE 364/6 V8 2006 - 2009 Dodge Charger R/T 345/5

154 Jet Size

Expansion is guaranteed only to 1/4 inch over the original neck size

GM 58X EFI HARNESS KIT - 558-501 2WD Notes: This system fits allOverview: 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! Features: Harness Kit Includes; Main Power Harness, LS2 Main Harness & LSX Injector harness Simple Installation Works with HP or Dominator ECU's