BBK's front oxygen extension harness kit is a required add-on when installing BBK 3.7L S197 Mustang specific Long Tube Headers to maintain the OBD2 fuel trim function and ensure your engine operates at a safe air/fuel ratio. The 12" leads are a direct fit between your sensors and the factory wiring harness with no cutting, splicing or tapping required.
Note: O2 sensors are NOT included in this kit.
Features & Benefits:
- Prevents lean engine damage
- Maintains proper air fuel ratio
- Plug and play install
- 3.7L Cyclone compatible