Part # 558-501
$1,068.95
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 & Benefits
Includes Main Power Harness, LS2 Main Harness, and LSX injector harness
Fits: GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector
Installation note: NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.
| Harness Application | LSX |
The EFI Brain
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