Skip to product information
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!
Holley EFI GM LS 58X EFI HARNESS KIT - 558-502
$999.95
Features:
- Harness Kit Includes; Main Power Harness, LS2 Main Harness & V-8 Injector harness
- Simple Installation
- Works with HP or Dominator ECU's
Product Specifications:
- Product Details: GM LS2/LS3/LS7, 58X Crank Sensor, Bosch Injector
- Harness Application: LSX
- Part Type: Fuel Injection Harness
- Product Type: Harness Kit
Installation Notes:
NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.