2014 chevrolet/gmc silverado/sierra 1500 6.2l automatic/manual trans. Ext. Cab standard bed 78.7 in. crew cab short bed 69.3 in. 143.5 in. wheel base. Features Product Type - Cat Back Exhaust. Pipe Diameter - 3.5 in. directly into muffler dual 2.25 in. out. Tip Size - four...