When doing a long tube header installation on any Mustang, chances are you'll need to extend the oxygen sensor harnesses. BBK takes out the guesswork with this 2018-2021 Mustang GT O2 extension kit! The factory harness cannot reach the new O2 sensor location, therefore these extension harnesses are needed. BBK utilizes factory-style, 5-pin connectors to ensure a perfect fit. These Mustang O2 extensions control the upstream oxygen sensors.
Some connectors may require the small directional location tabs to be removed from the ends of the connectors to click into place.
BBK Mustang Parts - Today's Performance
Since 1988 - BBK has dedicated itself to designing and building cutting-edge high-performance parts and accessories for today's EFI-equipped Mustangs and Ford Lightnings while maintaining the OEM quality levels.
From their world-famous line of "Power-Plus-Series" performance throttle bodies to their hundreds of "CNC-Series" performance exhaust offerings - the BBK brand is known for delivering unmatched value and quality. Shop BBK for your Mustang headers, exhaust, cold air intakes, and other performance parts!