Fully loomed and terminated plug-and-play harness for adding a second wideband sensor to your Holley Dominator equipped vehicle.
Features
- Plugs directly into J2A ecu connector
- Compatible with both the NTK (554-100) and Bosch LSU4 (554-101) oxygen sensors for Holley EFI
- Constructed genuine components, high-quality TXL wire and shielded tefzel cable