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Your cart is empty.The Flowmaster American Thunder Cat-back exhaust system for the 2020 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L gas engine, is perfect if you are 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, emisisons-legal system features a stainless steel 50 Series HD muffler and large dual 3.00-inch 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 polished 4.00-inch stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.
greg
Reviewed in the United States on May 1, 2024
Installed on my 2024 high country CC 6.6 gas truck. Worked awesome went in smooth AF! Just know you need a air chisel with a hammer bit to mount the collector to the new flange. Other than that, walk in the park.
Nate C
Reviewed in the United States on October 2, 2021
All the pieces were not in the box, it did not fit correctly, I had to take it to a muffler shop and pay to have a part made and installed. The seller would not send s replacement part!
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