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Flowmaster American Thunder Cat-Back Exhaust System for 2024-2026 Chevrolet Silverado 1500 and GMC Sierra 1500

Part # 818206

  • 3.5 and 2.5-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • Kit includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • An tuned 50 Series HD style chambered muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
  • Max increases of up to 15 hp and 13 lb-ft over the stock exhaust at the wheels
  • Tuned performance muffler with built in resonance chamber eliminates interior drone
  • Lifetime Limited Warranty

Description

Flowmaster's® American Thunder® Cat-back exhaust system for the 2024 to 2026 GM 1500 trucks with the 6.2-liter engine is a great way to customize your Silverado or Sierra to your personality. This performance exhaust system fits both 2/4 Wheel drive models and is manufactured from 409 stainless steel for years of trouble-free service and performance. Features include a 3.50-inch inlet pipe leading into a specialty tuned 50 Series HD style muffler for great sound and maximum performance. This cat-back system has dual 2.5-inch mandrel-bent tailpipes that exit in the bumper cut-out locations, with custom quad exit 4.0-inch black ceramic tips for a great performance look. Included in this cat-back system is active valve control with an integrated turndown. This allows you to control the factory valve from the dash with the different drive modes for full control of your sound level. Run the valve closed in the Normal drive mode, or open the valve in Sport or Off-Road mode for maximum sound. Max dyno gains of 15 hp and 13 lb-ft at the rear wheels deliver power you can feel. These systems use all the factory hanger locations and connections for an easy installation that you can do at home. Kit include installation instructions and all necessary hardware. Backed by Flowmaster's Lifetime Limited Warranty.

Specifications

CARB (California) CompliantYes
Catalytic Converter IncludedNo
Catalytic Converter Quantity0
Choose Your PartExhaust System
Clamping TypeFlat Band
Clamps IncludedYes
Drive4WD
Exhaust SeriesAmerican Thunder
Exhaust Tip ColorBlack
Exhaust Tip ConnectionClamp-On
Exhaust Tip CutAngled
Exhaust Tip Diameter4.00 in
Exhaust Tip EdgeRolled Edge Angle Cut
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip IntercooledNo
Exhaust Tip Length7.5 in
Exhaust Tip Material304 Stainless Steel
Exhaust Tip Quantity2
Exhaust Tip ResonatedNo
Exhaust Tip ShapeRound
Exhaust Tip WallDouble Wall
Exit StyleDual Out Rear
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield IncludedNo
UPC / GTIN00090127973936
WarrantyManufacturer's Limited Lifetime Warranty

Fits these vehicles

YearMakeModelSubmodelEngineNote
2024 - 2026ChevroletSilverado 1500High Country, LT Trail Boss, LTZ, RST6.2L V8Fits trucks with factory bumper cut-outs only
2024 - 2026GMCSierra 1500AT4, Denali, Denali Ultimate, SLT6.2L V8Fits trucks with factory bumper cut-outs only