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Flowmaster American Thunder Cat-back Exhaust System for Chevrolet and GMC

Part # 817853

  • 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

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.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Clamping TypeFlat Band
Clamps IncludedYes
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorSilver
Exhaust Tip ConnectionClamp-On
Exhaust Tip CutAngled
Exhaust Tip Diameter3.50 in
Exhaust Tip EdgeAngle Cut
Exhaust Tip FinishPolished
Exhaust Tip IntercooledNo
Exhaust Tip Length13.00 in
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallDouble Wall
Exit StyleDual Out Side
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield IncludedNo
Inlet TypeClamp-On
Main Piping Diameter2.50 in
UPC / GTIN00700042039012
WarrantyManufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
2019 - 2021ChevroletSilverado 1500Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV, WT5.3L V8Polished 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
2022ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, WT5.3L V8Polished 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
2023 - 2026ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, PPV, RST, WT5.3L V8Polished 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
2022ChevroletSilverado 1500 LTDHigh Country, LT, LT Trail Boss, LTZ, RST, SSV, WT5.3L V8Polished 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
2019 - 2021GMCSierra 1500AT4, Base, Denali, Elevation, SLE, SLT5.3L V8Polished 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
2022 - 2026GMCSierra 1500Denali, Elevation, Pro, SLE, SLT5.3L V8Polished 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
2022GMCSierra 1500 LimitedDenali, Elevation, Pro, SLE, SLT5.3L V8Polished 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