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: $198.41 Now: $172.53 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: $244.00 Now: $212.18 Was: Connector and Pin Kit - J2A / J2B / J3 / J4 Plugs - Holley Dominator EFI - Kit
Add to Cart Quick view Holley Hei Ignition Harness 558-304 HOLLEY MSRP: $75.76 Now: $65.88 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 Wiring Harness - Can Splitter 558-465 HOLLEY MSRP: $62.45 Now: $54.30 Was: Data Transfer Cable - Holley EFI CAN Splitter - Each