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Flowmaster American Thunder Cat-Back Exhaust For 2011-2019 GM 2500/3500 HD 6.0L

Pricing: $1,079.95

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The new Flowmaster American Thunder® Cat-back exhaust system for 2011-2019 Chevy Silverado and GMC Sierra 2500HD/3500HD trucks with 6.0L, 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 large dual 3.00-inch stainless steel mandrel bent tailpipes that can be configured to exit either dual out the sides, or dual straight out the back. The system is finished off with beautifully 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.



  • 50 Series HD Muffler with Delta Flow Technology
  • Multiple Tailpipe Exits Provided in Kit
  • Large 3.00-inch Dual Tailpipes
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Flowmaster Quality
  • Easy Installation



  • 2011-2019 GMC Sierra 2500HD/3500HD 6.0L Gas
  • 2011-2019 Chevrolet Silverado 2500HD/3500HD 6.0L Gas



  • Flowmaster American Thunder Cat-Back Exhaust System
  • All Mounting Hardware



  • Fits crew cab/standard 6.5-foot bed models with 153.7" wheelbase
  • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations


  • 817541
  • 817541
  • Flowmaster
  • New

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  • FREE Ground Shipping

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