The Flowmaster® American Thunder® Cat-back exhaust system for the 2020-2023 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you 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 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 a pair of large 4.00-inch polished 304 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.Notes: Fits Crew Cab with 6.5' bed length, 159-inch wheelbase only.
Specifications:
Description_ASC |
Fits 2020-2023 Chevy Silverado/GMC Sierra 2500HD/3500HD trucks with 6.6L gas engine. Crew Cab/6.5ft bed only.Will not fit models with 5th wheel tow hitch installed. |
Description_DES |
Flowmaster American Thunder Cat-back Exhaust System |
Description_DEF |
Exhaust System Kit |
Description_EXT |
American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit; Incl. 3 in. Tailpipes/50 Series (TM) HD Muffler/4 in. Stainless Tips; 409 Stainless Steel; |
Description_INV |
2020-2023 GM 2500HD 6.6L CC/SB AMT DOR/S |
Description_FAB |
Mandrel-bent 16-gauge Tubing for Maximum Exhaust Flow |
Description_FAB |
Uses the Factory Hanger Locations for Easy Installation |
Description_FAB |
50 Series HD Muffler with Delta Flow Technology |
Description_FAB |
409 Stainless Steel Construction for Long Life |
Description_FAB |
Increased Performance and Exhaust Flow |
Description_FAB |
Multiple Tailpipe Exits Provided in Kit |
Description_FAB |
Large 3.00-inch Dual Tailpipes |
Description_FAB |
Deep Powerful Exterior Sound |
Description_FAB |
Lifetime Limited Warranty |
Description_FAB |
Flowmaster Quality |
Description_SHO |
Exhaust System Kit |
Description_MKT |
The Flowmaster® American Thunder® Cat-back exhaust system for the 2020-2023 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you 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 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 a pair of large 4.00-inch polished 304 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.Notes: Fits Crew Cab with 6.5' bed length, 159-inch wheelbase only. |
Tubing Diameter (in) |
3.5/3 |
Tip Length |
13 |
Muffler Finish |
Painted |
Muffler Inlet Location |
Centered |
WARNING CA Proposition 65 |
Yes |
Material |
409 Stainless Steel |
California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
Exhaust Series |
American Thunder |
Muffler Body Length (in) |
18 |
Tip Material |
304 Stainless |
Tip Shape |
Round |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
California Proposition 65 Required |
Yes |
Muffler Inlet Diameter |
3.5 |
Muffler Material |
409S Stainless Steel |
Muffler Overall Length (in) |
24 |
Muffler Shape |
Oval |
Muffler Type |
Reflection |
Product Type |
Exhaust System |
Single Dual |
Dual |
Sound Level |
Aggressive / Moderate |
Tip Edge Style |
Cut |
Warning |
California Proposition 65 |
Inlet Inside Diameter |
3.000 in. |
Tip Diameter |
4.000 in. |
Tail Pipe Diameter |
3.000 in. |
Exhaust Type |
Cat-Back |
Brand |
Flowmaster |
Catalytic Converter Format |
No |
Exit Position |
Dual Out Rear / Dual Out Side |
Heat Shield |
No |
Mount Type |
Uses Factory Hangers |
Muffler Color |
Black |
Muffler Outlet Diameter |
3 |
Muffler Outlet Location |
Dual Outlet |
Muffler Part Number |
Kit Only |
Sale Category |
Exhaust |
System Type |
Cat-back |
Tip Cut |
Angle |
Tip Finish |
Polished |
Tip Logo |
Embossed |
Tip Quantity |
2 |
Tip Style |
Double Wall |
Tubing Material |
409S Stainless Steel |
Tubing Diameter |
3.000 in. |
Emission Code |
5 |
Muffler Series |
50 Series HD |
Length |
12.0000 |
Width |
16.0000 |
Height |
58.0000 |
Weight |
65.0000 |