Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
Kooks 12" O2 extension harness for 2005–2010 Mustang GT (3V) and 2007–2010 Shelby GT500 (4V). This 12-inch, 4-pin round connector harness replaces damaged or lost oxygen sensor extensions and is the same style included with Kooks header kits where required. Backed by Kooks’ long history building exhaust components in the USA, it lets you restore correct sensor routing without replacing headers.
Kooks 05-10 Mustang GT 3V & 07-10 GT500 4V 12in - 02 Ext Harn -Each
