Add to Cart ECU & Wiring Harness LS1 HOLLEY MSRP: Now: $2,849.95 Was: Engine Control Module - HP EFI - Wiring Harness - 24x Reluctor Wheel - LS1 / LS6 - GM LS-Series - Each HLY550-602
Add to Cart Main Wiring Harness LS2 & LS3 HOLLEY MSRP: Now: $675.95 Was: EFI Wiring Harness - Main Harness - Holley HP / Dominator EFI - 58x Reluctor Wheel - LS2 / LS3 / LS7 - GM LS-Series - Each HLY558-103