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American Thunder Cat-back Exhaust System

Mfg Part #
817853
NP#
FLO817853
Brand
Flowmaster
Fitment Note
Polished Tip Finish, Fits crew and double cab models; Polished Tip Finish, Does not fit crew cab 2WD with 2 PC driveshaft; Fits crew and double cab models; Does not fit crew cab 2WD with 2 PC driveshaft

Fits 2019 to 2026 Chevrolet Silverado 1500, Silverado 1500 LTD; 2019 to 2026 GMC Sierra 1500, Sierra 1500 Limited. See every vehicle

  • Large 3.50 inch Polished 304 Stainless Tips
  • Uses the Factory Hanger Locations
  • Deep, Powerful Performance Tone
  • Full Stainless Steel Construction
  • Clears Factory Spare Tire
  • Lifetime Limited Warranty
  • Mandrel-bent Tubing
  • Easy Installation
  • Max Dyno Gains of 21 hp and 23 lb.ft. of Torque
$1,819.93 CAD Ships tomorrow
Free shipping in Canada, ships tomorrow
Availability: This product is in one of our warehouses.

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Description

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.

Warranty: Manufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngine
2019 - 2021ChevroletSilverado 1500Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT5.3L 325 V8
2022ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, WT5.3L 325 V8
2023 - 2026ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, PPV, RST, WT5.3L 325 V8
2022ChevroletSilverado 1500 LTDHigh Country, LT, LT Trail Boss, LTZ, RST, SSV, WT5.3L 325 V8
2019 - 2021GMCSierra 1500AT4, Base, Denali, Elevation, SLE, SLT5.3L 325 V8
2022 - 2026GMCSierra 1500Denali, Elevation, Pro, SLE, SLT5.3L 325 V8
2022GMCSierra 1500 LimitedDenali, Elevation, Pro, SLE, SLT5.3L 325 V8

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