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1993-1997 Pontiac Firebird
00-inch muscle car system for the person who is looking for a deep aggressive sound for their high horsepower vehicle
Instructions and all the necessary hardware are included with the kit for an easy bolt-on installation
Models with Single Exhaust
1979-1986 GMC G1500
GM 58X EFI HARNESS KIT - 558-501 Medium Margin 1993-1997 Pontiac FirebirdOverview: 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
