Home » Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System
Flowmaster

Flowmaster 19-25 GM 1500 5.3L American Thunder Cat-Back Exhaust System

SKU: flo817853
Out of stock
$1,299.95

Ready to install and hit the road!

All parts come with the essentials you need for a smooth fit and clear instructions. From performance upgrades to custom styling, unbox and get your ride ready with confidence!

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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 2019-2026 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. Fits 2019-2026 GM Silverado/Sierra 1500 (New Body Style) 5.3L engines. - Aggressive to moderate sound Does not fit crew cab 2WD with 2-piece driveshaft, 2019 LD/classic body or trucks with factory dual exhaust tailpipes. Does not fit models wit the Multimatic suspension option.
  • Max Dyno Gains of 21 hp and 23 lb.ft. of Torque
  • Large 3.50 inch Polished 304 Stainless Tips
  • Full Stainless Steel Construction
  • Uses the Factory Hanger Locations
  • Deep, Powerful Performance Tone
  • Clears Factory Spare Tire
  • Lifetime Limited Warranty
  • Mandrel-bent Tubing
  • Easy Installation

Fitment:
2019 Chevrolet Silverado 1500
2019 GMC Sierra 1500
2020 Chevrolet Silverado 1500
2020 GMC Sierra 1500
2021 Chevrolet Silverado 1500
2021 GMC Sierra 1500
2022 Chevrolet Silverado 1500
2022 Chevrolet Silverado 1500 LTD
2022 GMC Sierra 1500
2022 GMC Sierra 1500 Limited
2023 Chevrolet Silverado 1500
2023 GMC Sierra 1500
2024 Chevrolet Silverado 1500
2024 GMC Sierra 1500
2025 Chevrolet Silverado 1500
2025 GMC Sierra 1500
2026 Chevrolet Silverado 1500
2026 GMC Sierra 1500


Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1