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2018+ Mustang O2 ExtensionsQuantity 2When doing a long tube header installation on the 2018+ Mustang GT you'll need to extend the oxygen sensor harnesses. Michigan Motorsports takes out the guesswork with this 2018+ Mustang GT O2 extension kit! The factory harness cannot reach the new O2 sensor location, therefore these plug and play extension harnesses are needed. We utilizes factory style, 5-pin connectors to ensure a perfect fit. These Mustang O2 extensions extend the upstream oxygen sensors....

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