Installation of long tube headers may require a need to extend the oxygen sensor harnesses. The factory harness cannot reach the new O2 sensor location; therefore, these extension harnesses are needed. BBK utilizes factory-style, 5-pin connectors to ensure a perfect fit. These Mustang O2 extensions control the upstream oxygen sensors. Some connectors may require the small directional location tabs to be removed from the ends of the connectors to click into place.
This Part Fits:
| Year | Make | Model |
| 2018 - 2022 | Ford | Mustang GT |
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