Holley EFI GM LS 58X EFI HARNESS KIT - GM LS2/LS3/LS7, 58X Crank Sensor, Bosch Injector

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Overview 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 Holle y EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system! NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit Features Harness Kit Includes; Main Power Harness, LS2 Main Harness & V-8 Injector harness Simple Installation Works with HP or Dominator ECU's Show more