Add to Cart Quick view HP ECU & Harness GM LS2/LS3/LS7 HOLLEY MSRP: Now: $2,599.95 Was: Engine Control Module - HP EFI - Wiring Harness - LS2 / LS3 / LS7 - GM LS-Series - Each HLY550-607
Add to Cart Quick view ECU & Wire Harness Unterminated HOLLEY MSRP: Now: $2,499.95 Was: Engine Control Module - HP EFI - Unterminated Wiring Harness - Universal - Each HLY550-605
Add to Cart Quick view ECU & Wiring Harness LS1 HOLLEY MSRP: Now: $2,599.95 Was: Engine Control Module - HP EFI - Wiring Harness - 24x Reluctor Wheel - LS1 / LS6 - GM LS-Series - Each HLY550-602
Add to Cart Quick view Main Wiring Harness LS2 & LS3 HOLLEY MSRP: Now: $580.95 Was: EFI Wiring Harness - Main Harness - Holley HP / Dominator EFI - 58x Reluctor Wheel - LS2 / LS3 / LS7 - GM LS-Series - Each HLY558-103
Add to Cart Quick view Ford MPFI HP ECU and Wire Harness Kit HOLLEY MSRP: Now: $2,499.95 Was: Engine Control Module - HP EFI - Wiring Harness - Ford Multi Port Fuel Injection - Each HLY550-606
Add to Cart Quick view SmartSpark LS2/LS7 Remote Mnt Wire Harness DAYTONA SENSORS MSRP: Now: $241.99 Was: Ignition Wiring Harness - SmartSpark - Remote Mount - Daytona Sensor SmartSpark Ignition System - LS2 / 7 - GM LS-Series - Each DAY119005
Add to Cart Quick view Wire Harness - LS2/LS3/ LS7 Fuel Injectors HOLLEY MSRP: Now: $822.95 Was: EFI Wiring Harness - EV6 Style Injectors - Holley 58X Crank Sensor EFI - Each HLY558-501
Add to Cart Quick view ECU & Harness MPFI Kit HOLLEY MSRP: Now: $2,499.95 Was: Engine Control Module - HP EFI - Wiring Harness - V8 Multi Port Fuel Injection - Each HLY550-604
Add to Cart Quick view HP ECU & Harness MPFI - NTK HOLLEY MSRP: Now: $2,749.95 Was: Engine Control Module - HP EFI - Wiring Harness - NTK Oxygen Sensor - V8 Multi Port Fuel Injection - Each HLY550-604N