Pair of Oxygen Sensor Extension Harnesses for 1986-2010 Mustangs.O2 wire harness extenders are a must when installing long tube headers so that the O2 sensors reach the new location. Factory OEM connectors and heat protective sleeves make installation a snap. Sold as a pair.
These are 4 wire and can be used for 3 or 4 wire O2 Connectors. May require the small directional tabs to be removed on the ends of the connectors to fit some applications.