Description Description Engine Control Module - HP EFI - Unterminated Wiring Harness - Universal - Each View AllClose
Add to Cart Quick view ECU & Wiring Harness LS2 (HLY550-603) HOLLEY MSRP: Now: $2,339.95 Was: Engine Control Module - HP EFI - Wiring Harness - 58x Reluctor Wheel - LS2 / LS3 / LS7 - GM LS-Series - Each
Add to Cart Quick view ECU & Wiring Harness LS1 (HLY550-602) HOLLEY MSRP: Now: $2,339.95 Was: Engine Control Module - HP EFI - Wiring Harness - 24x Reluctor Wheel - LS1 / LS6 - GM LS-Series - Each
Out of stock Quick view Ford MPFI HP ECU and Wire Harness Kit (HLY550-606) HOLLEY MSRP: Now: $2,499.95 Was: Engine Control Module - HP EFI - Wiring Harness - Ford Multi Port Fuel Injection - Each
Add to Cart Quick view ECU & Harness MPFI Kit (HLY550-604) HOLLEY MSRP: Now: $2,249.95 Was: Engine Control Module - HP EFI - Wiring Harness - V8 Multi Port Fuel Injection - Each
Add to Cart Quick view HP ECU & Harness MPFI - NTK (HLY550-604N) HOLLEY MSRP: Now: $2,474.95 Was: Engine Control Module - HP EFI - Wiring Harness - NTK Oxygen Sensor - V8 Multi Port Fuel Injection - Each