Holley EFI - 558-448
J1A / J1B ECU Connector Kit; J1A/J1B ECU Connector Kit w/Pins and Seals;
If you already have your own wire and simply need the connectors and pins, we have you covered with our new ECU connector and pins kit, allowing you to fully terminate your own custom main harnesses!
- 1 - J1A ECU Connector
- 60 - 20-22ga ECU Pins
- 20 - 16-18ga ECU Pins
- 30 - Cavity Plugs