These BBK O2 Wire Harness Extenders are a must when installing full length headers 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.

OEM connectors and heat protective sleeves make installation a snap. Some connectors may require the small directional location tabs to be removed from the ends of the connectors to click into place.

Fits
2015-2017 Mustang GT & V6