Skip to main content
Photo - Primary

Holley EFI H558-501

Holley EFI 558-501 - GM 58X EFI HARNESS KIT

SKU: H558-501

$921.95
(No reviews yet) Write a Review

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!

Available Stock: 1
Adding to cart… The item has been added
IN STOCK

Description

Harness Kit Includes; Main Power Harness, LS2 Main Harness & LSX Injector harness

Simple Installation

Works with HP or Dominator ECU's

Details

  • H558-501
  • H558-501
  • 090127721322
  • Holley EFI
  • In Stock - Orders by 2pm CST, ship within 1-2 business days.

Categories

Shipping Information

  • Item Requires Shipping
  • H5.00"
  • Ships within 1-2 business days

May we suggest

California Residents: Prop 65

WARNING: Cancer and Reproductive Harm -

www.p65warnings.ca.gov

!