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

Part # 817895

  • Large 4.00-inch Black Ceramic Coated Stainless Quad Tips
  • Max Dyno Gains of 15 hp and 19 lb.ft. of Torque
  • Moderate Interior with Aggressive Exterior Tone
  • Uses the Factory Hanger Locations
  • Large Volume Super 40 Muffler
  • Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy Installation

Description

This Flowmaster® American Thunder® cat-back exhaust system for the 2019-2026 GM 1500 (new body style) trucks with 5.3L engine is perfect for the person looking for an aggressive sound level outside the truck, with a moderate interior tone and the performance benefits you would expect from Flowmaster. This emissions-legal bolt-on system fits all Crew Cab and Double Cab models with 5.5 and 6.5-ft long beds with factory dual exhaust option. Features include flex joint, mandrel-bent 3.00-inch stainless steel tubing flowing into a Super 40® Series muffler, dual 2.50-inch mandrel-bent stainless tailpipes that are finished off with quad 4.00-inch black ceramic coated stainless steel tips exiting out under the factory exhaust bezels. Designed for an easy fit, this system includes all necessary parts and hardware for an easy at home installation. Maximum dyno gains of 15 hp and 19 lb.ft. at the rear wheels. Notes: Fits 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 Crew Cab and Double Cab models with 5.3L engine. Fits models with 5.5 and 6.5-ft long beds with factory dual exhaust option.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Clamping TypeFlat Band
Clamps IncludedYes
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorBlack
Exhaust Tip ConnectionWelded
Exhaust Tip CutAngled
Exhaust Tip Diameter4.00 in
Exhaust Tip EdgeAngle Cut
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip IntercooledNo
Exhaust Tip Length7.50 in
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity4
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallSingle Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Inlet TypeClamp-On
Main Piping Diameter2.50 in
Mount TypeUses Factory Hangers
UPC / GTIN00700042039029
WarrantyManufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
2019 - 2021ChevroletSilverado 1500Custom, Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST, SSV5.3L V8Does not fit trucks with factory single exhaust
2022ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, RST5.3L V8Does not fit trucks with factory single exhaust
2023 - 2026ChevroletSilverado 1500Custom Trail Boss, High Country, LT, LT Trail Boss, LTZ, PPV, RST5.3L V8Does not fit trucks with factory single exhaust
2022ChevroletSilverado 1500 LTDHigh Country, LT, LT Trail Boss, LTZ, RST, SSV5.3L V8Does not fit trucks with factory single exhaust
2019 - 2021GMCSierra 1500AT4, Base, Denali, Elevation, SLE, SLT5.3L V8Does not fit trucks with factory single exhaust
2022 - 2026GMCSierra 1500Denali, Elevation, Pro, SLE, SLT5.3L V8Does not fit trucks with factory single exhaust
2022GMCSierra 1500 LimitedDenali, Elevation, Pro, SLE, SLT5.3L V8Does not fit trucks with factory single exhaust