BBK 05-20 Dodge Hellcat 6.2L 6 Pin Front O2 Sensor Wire Harness Extensions 12 (pair)Simplifies Header Installation. These 6 wire BBK O2 Wire Harness Extenders are a must when installing full length headers on your 2015 2018 Dodge Charger, Challenger 6. 2L Hellcat 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. Easy