Overview Reviews Product Description 558-448 Holley EFI J1A/J1B ECU Connector Kit 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! Product Videos Custom Field Product Reviews Write a Review Write a Review × 558-448 Holley EFI J1A/J1B ECU Connector Kit Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
