Oxygen Sensor 02 Upstream Extension Harness C7 Z06 Corvette Camaro LT1 LT4 LT5 Gen V Includes Two 15" Cable Extension This is a pair of NEW oxygen sensor extensions for upstream (closest to motor) O2's on a C7 Z06. The harnesses are 15" long. Fits other gen 5 GM applications such as the 2016+ Camaro, Silverado, Suburban or other trucks. When you install most aftermarket headers, it moves the oxygen sensor bungs towards the rear of the car, farther from the factory harness, so extensions are required. These extensions make the installation hassle free by not having to cut and splice the factory wiring. Fits these vehicles and many more: BUICK CASCADA 2016-2018 BUICK ENVISION 2017-2018 BUICK LACROSSE 2018 BUICK REGAL 2014-2017 CADILLAC ATS 2013-2017 CADILLAC CTS 2014-2018 CADILLAC ESCALADE 2016-2018 CAMARO 2016-2018 COLORADO 2015-2018 CORVETTE 2014-2018 IMPALA 2014-2018 MALIBU 2013-2015 MALIBU LIMITED 2016 SILVERADO 2500 2016-2018 SILVERADO 3500 2016-2018 SUBURBAN 2016-2018 SUBURBAN 3500 HD 2018 TAHOE 2016-2018 GMC ACADIA 2017-2018 GMC CANYON 2015-2018 GMC SIERRA 2500 2016-2018 GMC SIERRA 3500 2016-2018 GMC YUKON 2016-2018 GMC YUKON XL 2016-2018