Kook's Custom Headers
Kook's Custom Headers Catted Y-Pipe - 3 in. x OEM Outlet - Incl. High Flow Race Cat - OEM Outlet For Use w/Stock Exhaust - Must Be Used w/Kooks Headers - Stainless Steel - Supersedes To PN[286320] 28603200
Kooks Exhaust Intermediate PipesApplication:2014-2016 CHEVROLET SILVERADO 1500 V8 5.3 2014-2015 GMC SIERRA 1500 V8 5.3 2016-2016 GMC SIERRA 1500 V8 5.3 GAS 2016-2016 GMC SIERRA 1500 V8 5.3 FLEX