BBK Gauge Components 1121 BBK O2 Wire Harness Extenders are a must when installing full length headers on your 2018-2019 Mustang 5.0 due to the fact that the O2 sensor locations are relocated on full length headers. So rather than cutting into your factory wire harness to make the connections reach, simply plug in a set of BBK extensions and make all the connections look factory with no mess. 2018 UP MUSTANG GT FRONT WIRE 16in. O2 HARNESS EXTENSION KIT (PAIR) 2018-19 MUSTANG GT FRONT WIRE 16" O2 HARNESS EXTENSION KIT (PAIR) BBK 18-19 Ford Mustang GT O2 Sensor Wire Harness Extensions 16in (pair)
