When doing a long tube header installation on any Mustang, chances are you'll 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, 6-pin connectors to ensure a perfect fit. These Mustang O2 extensions control the upstream oxygen sensors.
This Product Fits:
| Year | Make | Model |
| 2015-2017 | Mustang | GT |
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