Flowmaster 817853 American Thunder Cat Back Exhaust System Flowmaster 817853

This Flowmaster American Thunder Cat-back exhaust system is perfect for the person looking for deep, powerful sound outside the vehicle with a little growl inside the cab. This emissions-legal system is for 2WD & 4WD 2019-2022 GM 1500 trucks (new body style) with the 5.3L engine and factory single exhaust. System features include full stainless steel construction, a single in/dual outlet Super 40 Series muffler and mandrel-bent dual 2.50-inch stainless steel tailpipes for maximum performance and a deep sound. Maximum dyno gains of 21 hp and 23 lb. Ft. at the rear wheels. This bolt-on system utilizes the factory hanger locations and includes your choice of tailpipe exits, either dual out the rear exiting under the bumper, or dual out the side behind the rear wheels to help prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 3.50-inch double wall polished 304 stainless steel tips. Designed for a perfect fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive Crew cab and double cab models.

Specifications:

Description_DES	American Thunder Cat Back Exhaust System
Description_EXT	American Thunder Cat Back Exhaust System; Dual Out Rear Or Side Exit; Incl. 2.5in. Tubing/Super 40 Series Muffler/3.5 in. Polished Tips; 409 Stainless Steel;
Description_FAB	Deep Powerful Performance Tone
Description_FAB	Full Stainless Steel Construction
Description_FAB	Easy Installation
Description_MKT	This Flowmaster American Thunder Cat-back exhaust system is perfect for the person looking for deep, powerful sound outside the vehicle with a little growl inside the cab. This emissions-legal system is for 2WD & 4WD 2019-2022 GM 1500 trucks (new body style) with the 5.3L engine and factory single exhaust. System features include full stainless steel construction, a single in/dual outlet Super 40 Series muffler and mandrel-bent dual 2.50-inch stainless steel tailpipes for maximum performance and a deep sound. Maximum dyno gains of 21 hp and 23 lb. Ft. at the rear wheels. This bolt-on system utilizes the factory hanger locations and includes your choice of tailpipe exits, either dual out the rear exiting under the bumper, or dual out the side behind the rear wheels to help prevent blowing exhaust on your boat or trailer when towing. The system is finished off with a pair of large 3.50-inch double wall polished 304 stainless steel tips. Designed for a perfect fit, the system includes installation instructions and all the necessary hardware for an easy at home installation. Note: Fits 2/4 wheel drive Crew cab and double cab models.
Description_SHO	Exhaust System Kit

This Part Fits:

Year	Make	Model	Submodel	Notes
2019	Chevrolet	Silverado 1500	Custom
2020	Chevrolet	Silverado 1500	Custom
2020	GMC	Sierra 1500	AT4
2021	GMC	Sierra 1500	AT4
2019	GMC	Sierra 1500	Base
2020	GMC	Sierra 1500	Base
2021	GMC	Sierra 1500	Base
2019	GMC	Sierra 1500	Denali
2020	GMC	Sierra 1500	Denali
2021	GMC	Sierra 1500	Denali
2020	GMC	Sierra 1500	Elevation
2021	GMC	Sierra 1500	Elevation
2019	GMC	Sierra 1500	SLE
2020	GMC	Sierra 1500	SLE
2021	GMC	Sierra 1500	SLE
2019	GMC	Sierra 1500	SLT
2020	GMC	Sierra 1500	SLT
2021	GMC	Sierra 1500	SLT