Flowmaster 817891 American Thunder Cat Back Exhaust System Flowmaster 817891
$1,574.70
This Flowmaster American Thunder cat-back dual exhaust system for the 2019-2022 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine is perfect for the person looking for an...
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This Flowmaster American Thunder cat-back dual exhaust system for the 2019-2022 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster. This emissions-legal bolt-on system fits all 6.2L Crew Cab with 5.5-ft and 6.5-ft beds, and all Double Cab with a 6.5-ft bed and factory dual exhaust tailpipes. Features include a mandrel-bent 3.50-inch stainless steel inlet tube flowing into a single 50 Series HD muffler, dual 2.50-inch mandrel-bent stainless tailpipes replacing the factory resonators and giving your truck some growl. The tailpipes are finished off with quad 4.00-inch black ceramic coated stainless steel tips that exit in place of the factory bolt-on exhaust bezels giving your truck an aggressive performance style and setting your truck apart from others, sending the message that you would rather lead than follow. Designed for an easy fit, this system includes all necessary parts, detailed instructions and hardware for an easy at home installation. Notes: Fits 147-inch and 157-inch wheelbases with 6.2L engine and factory dual tailpipes.
Specifications:
| Description_DES | American Thunder Cat Back Exhaust System |
| Description_EXT | American Thunder Cat Back Exhaust System; Dual Out Rear Exit; Incl. 2.5 in. Tubing/Straight Through Mufflers/Round Polished Tips; 409 Stainless Steel; |
| Description_FAB | Moderate/Aggressive Exterior Tone |
| Description_FAB | Uses Factory Hanger Locations |
| Description_FAB | Stainless Steel Construction |
| Description_FAB | Removes Resonators |
| Description_MKT | This Flowmaster American Thunder cat-back dual exhaust system for the 2019-2022 GM Silverado/Sierra 1500 (new body style) trucks with the 6.2L engine is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and all the performance benefits you would expect from Flowmaster. This emissions-legal bolt-on system fits all 6.2L Crew Cab with 5.5-ft and 6.5-ft beds, and all Double Cab with a 6.5-ft bed and factory dual exhaust tailpipes. Features include a mandrel-bent 3.50-inch stainless steel inlet tube flowing into a single 50 Series HD muffler, dual 2.50-inch mandrel-bent stainless tailpipes replacing the factory resonators and giving your truck some growl. The tailpipes are finished off with quad 4.00-inch black ceramic coated stainless steel tips that exit in place of the factory bolt-on exhaust bezels giving your truck an aggressive performance style and setting your truck apart from others, sending the message that you would rather lead than follow. Designed for an easy fit, this system includes all necessary parts, detailed instructions and hardware for an easy at home installation. Notes: Fits 147-inch and 157-inch wheelbases with 6.2L engine and factory dual tailpipes. |
| Description_SHO | Exhaust System Kit |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2019 | Chevrolet | Silverado 1500 | High Country | |
| 2020 | Chevrolet | Silverado 1500 | High Country | |
| 2019 | GMC | Sierra 1500 | AT4 | |
| 2020 | GMC | Sierra 1500 | AT4 | |
| 2019 | GMC | Sierra 1500 | Denali | |
| 2020 | GMC | Sierra 1500 | Denali | |
| 2019 | GMC | Sierra 1500 | SLT | |
| 2020 | GMC | Sierra 1500 | SLT |
Shipping Information
We offer FREE shipping on all orders within Canada. Most orders ship within 1-2 business days.
Standard delivery typically takes 3-7 business days depending on your location.
Returns Policy
We accept returns within 30 days of purchase. Items must be in original condition with all packaging.
For returns or exchanges, please contact our customer service team.

