Description
American Thunder Cat Back Exhaust System; Dual; Dual Rear Same Side Exit; 4.0 in. Dia.; Incl. 3.5 in
Flowmaster’s new American Thunder Cat-back exhaust system for the 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L V8 is perfect for the person looking for a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits that you would 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 dual 3.00 in. DOR/S (Dual Out Rear/ Dual Out Side) stainless steel mandrel bent tailpipes. The system is finished off with beautifully polished 4.00 in. stainless steel tips. The exhaust system is covered by Flowmaster’s Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more.
Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.
Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles. 
