Skip to content

Free Shipping & Easy Returns

Sales (855) 895-TRUK

Flowmaster American Thunder Cat Back Exhaust System

Collections: Performance

Part: ds_BDXN_817541

Availability: Special order, usually ships in 2-3 weeks. However, if the manufacturer has this item in stock we can normally drop ship it directly to you within 3-5 business days. Contact us and we can get you an accurate ETA before placing an order.

Price: $1,004.95

Free Shipping for all order over $99
Payment methods
  • PayPal
  • Venmo

100% secure and protected payments

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.

This Part Fits:

Year Make Model Submodel
2011-2014,2016-2019 Chevrolet Silverado 2500 HD
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2016-2019 Chevrolet Silverado 3500 HD
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2014,2016-2019 GMC Sierra 2500 HD
2015 GMC Sierra 2500 HD Base
2011-2013,2015 GMC Sierra 2500 HD Denali
2011-2013,2015 GMC Sierra 2500 HD SLE
2011-2013,2015 GMC Sierra 2500 HD SLT
2011-2013 GMC Sierra 2500 HD WT
2011-2019 GMC Sierra 3500 HD
Content for specifications
Content for warranty information

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.

This Part Fits:

Year Make Model Submodel
2011-2014,2016-2019 Chevrolet Silverado 2500 HD
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2016-2019 Chevrolet Silverado 3500 HD
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2014,2016-2019 GMC Sierra 2500 HD
2015 GMC Sierra 2500 HD Base
2011-2013,2015 GMC Sierra 2500 HD Denali
2011-2013,2015 GMC Sierra 2500 HD SLE
2011-2013,2015 GMC Sierra 2500 HD SLT
2011-2013 GMC Sierra 2500 HD WT
2011-2019 GMC Sierra 3500 HD

Content for specifications

Content for warranty information