DescriptionStainless constant-diameter pipes and straight-thru muffler nearly doubles flow. Lower exhaust temps. Virtually no backpressure. Rich, throaty sound. Monster exhaust system flows better than stock and virtually eliminates backpressure. The streamlined intermediate pipe(s) and tailpipe are formed of stainless, heavy-wall tubing with constant-diameter bends to maximize flow and lower exhaust gas temps. Banks replaces the factory’s restrictive muffler with a polished-stainless steel Monster muffler, featuring a straight-through flow-path with a Banks-designed expansion chamber which dissipates the annoying mid-range exhaust drone that’s so prominent in competitors’ straight-through mufflers. The muffler utilizes spun ceramic, very-high-temperature packing, more than doubles the stock flow and delivers an authoritative – but never intrusive – exhaust sound. A stainless steel tailpipe tip in your choice of polished chrome-over stainless or high-temp black sports a rolled edge. And to help keep it looking good, there’s a 1/2 inch air gap to keep heat from tarnishing the finish. An adjustable clamp lets you position it on the tailpipe just right.This Part Fits:YearMakeModelSubmodel2017-2019ChevroletSilverado 2500 HDHigh Country2017-2019ChevroletSilverado 2500 HDLT2017-2019ChevroletSilverado 2500 HDLTZ2017-2019ChevroletSilverado 2500 HDWT2017-2019ChevroletSilverado 3500 HDHigh Country2017-2019ChevroletSilverado 3500 HDLT2017-2019ChevroletSilverado 3500 HDLTZ2017-2019ChevroletSilverado 3500 HDWT2017-2019GMCSierra 2500 HDBase2017-2019GMCSierra 2500 HDDenali2017-2019GMCSierra 2500 HDSLE2017-2019GMCSierra 2500 HDSLT2017-2019GMCSierra 3500 HDBase2017-2019GMCSierra 3500 HDDenali2017-2019GMCSierra 3500 HDSLE2017-2019GMCSierra 3500 HDSLT