Holley GM TPI AND STEALTH RAM EFI HARNESS KIT p/n 558-503

  • Sale
  • $580.95
  • Regular price $646.00


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: Stealthram/TPI Main Harness, Main Power Harness, V-8 Injector Harness, HEI Ign Harness and Ignition Adapter & Tach Input
Simple Installation
Works with HP or Dominator ECU's