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Kooks Headers

Kooks 18+ Ford Mustang 8in. Front O2 Extension Harness - CAS-109677-8

Kooks 18+ Ford Mustang 8in. Front O2 Extension Harness - CAS-109677-8

$33.90 USD
$33.90 USD
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Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"

O2 Extension Harness 2018+ Mustang 1) 8 inch Front Extension Harness (5-Pin). Oxygen Sensor Extension harnesses are included in Header kits where needed. This part is a replacment for damaged or lost Extensions.


EPA Status: N/A

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St. Paul Speed & Performance hand selects the brands we offer based on decades of experience in domestic automotive performance and modification. If you ever experience a problem with your order, our representatives are well equipped to help ensure your purchase brings satisfaction.

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    We accept unopened items free of charge, excluding shipping fees.
    Unfortunately, during this time, we can not process opened items that
    would typically have a restocking fee.