Holley EFI- 558-401 Dominator EFI Auxiliary Harness

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Dominator EFI Connector J2A Auxiliary Harness Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with pre-crimped ECU pins Brand Holley EFI Emission Code 3 Harness Type Auxiliary Product Type J2 Auxiliary Input/ Output Harness - Connector UPC 090127666425 Part Number 558-401 Show more