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Flowmaster American Thunder Cat Back Exhaust System


Collections: Performance

Part: ds_BDXN_817933

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: $867.95

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The Flowmaster(R) American Thunder(R) 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(R) 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(TM) 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.

This Part Fits:

Year Make Model Submodel
2020-2021 Chevrolet Silverado 2500 HD
2020 Chevrolet Silverado 3500 HD
2020-2021 GMC Sierra 2500 HD
2020 GMC Sierra 3500 HD
Content for specifications
Content for warranty information

The Flowmaster(R) American Thunder(R) 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(R) 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(TM) 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.

This Part Fits:

Year Make Model Submodel
2020-2021 Chevrolet Silverado 2500 HD
2020 Chevrolet Silverado 3500 HD
2020-2021 GMC Sierra 2500 HD
2020 GMC Sierra 3500 HD

Content for specifications

Content for warranty information