Description Description EFI Wiring Harness - J4 Auxiliary Harness - Holley Dominator EFI - Each View AllClose
Add to Cart Quick view Holley J3 Connector & Harness 558-403 HOLLEY MSRP: Now: $173.68 Was: Wiring Harness - J3 Auxiliary Input / Output Connector - Dominator EFI - Each
Add to Cart Quick view Holley Connector & Pin Kit J2A/J2B/J3/J4 558-408 HOLLEY MSRP: Now: $210.12 Was: Connector and Pin Kit - J2A / J2B / J3 / J4 Plugs - Holley Dominator EFI - Kit
Add to Cart Quick view Holley Auxiliary Harness J2A Connector 558-401 HOLLEY MSRP: Now: $219.09 Was: EFI Wiring Harness - J2A Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit
Out of stock Quick view Holley Hei Ignition Harness 558-304 HOLLEY MSRP: Now: $69.53 Was: EFI Wiring Harness - Ignition Adapter Harness - GM Small Cap HEI Distributor to Holley Avenger / HP / Dominator EFI - Each
Add to Cart Quick view Holley Drive By Wire Harness Gm 558-406 HOLLEY MSRP: Now: $235.55 Was: EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each
Add to Cart Quick view Holley Can Extension Harness 12Ft 558-426 HOLLEY MSRP: Now: $86.46 Was: CAN Wiring Harness - Extension Harness - 12 ft Long - Black Rubber Coated - Each
Add to Cart Quick view Holley Efi Main Power Harness 558-308 HOLLEY MSRP: Now: $104.94 Was: EFI Wiring Harness - Main Power - Holley Dominator EFI - Each
Out of stock Quick view Holley Wiring Harness - Can Splitter 558-465 HOLLEY MSRP: Now: $57.09 Was: Data Transfer Cable - Holley EFI CAN Splitter - Each
Add to Cart Quick view Holley J2B Auxiliary Harness Kit 558-402 HOLLEY MSRP: Now: $173.68 Was: EFI Wiring Harness - J2B Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit