Flowmaster 817933 Flowmaster American Thunder Cat-back Exhaust System

Compatible with 2020 GM 2500HD/3500HD with 6.6L gas engine, Crew Cab/Short Bed, Dual Out Rear/Dual Out Side, Polished Tips; The Flowmaster® American Thunder® Cat-back exhaust system for the 2020 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster®.

Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD™ muffler and large dual 3.00 in.

409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications.

The system is finished off with a pair of large 4.00 in.

polished 304 stainless steel tips and is covered by our Lifetime Limited Warranty.