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817853 American Thunder Cat-back Exhaust System; Fits Select GM; Silverado/Sierra 1500 (New Body Style) 5.3L engines
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FLOWMASTERPART NUMBER: 389-817853

817853 American Thunder Cat-back Exhaust System; Fits Select GM; Silverado/Sierra 1500 (New Body Style) 5.3L engines

$1,29995
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American Thunder Cat-back Exhaust System
  • Fits Select GM; Silverado/Sierra 1500 (New Body Style) 5.3L engines
  • Sound Level: Aggressive To Moderate Sound
  • Sold Individually

    FLOWMASTER MUFFLERS 817853 Features:

    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 2019-2023 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.
    • 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
  • Part TypeExhaust System
    BrandFLOWMASTER
    Package Height9.75
    Package Width15.25
    Package Length49.0
    Weight20.75 PG
    Muffler Inlet Inside Diameter3 in.
    Hangers IncludedYes
    Main Piping Diameter2.50 in.
    Tail Pipe QuantityDual
    Inlet TypeClamp-On
    Exhaust Tip Material304 Stainless Steel
    Catalytic Converter Quantity0
    Muffler Body Length13.50 in.
    Sound LevelAggressive / Moderate
    Muffler Body Material409 Stainless Steel
    Exhaust Tip CutAngled
    Gasket Or Seal IncludedNo
    Exhaust Tip IntercooledNo
    Pipe ColorSilver
    Muffler Quantity1
    Muffler Inlet Outside Diameter3.13 in.
    Muffler Flanged OutletNo
    Exhaust Tip ResonatedNo
    Muffler Outlet LocationDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Exhaust Tip WallDouble Wall
    Exhaust Tip Quantity2
    Muffler Inlet LocationCenter
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeAngle Cut
    Valve IncludedNo
    Muffler TypeReflection
    Pipe Material409 Stainless Steel
    Muffler Body Width10 in.
    Tail Pipe Tapered OutletNo
    Muffler Body ShapeOval
    Mounting Bracket IncludedYes
    Muffler Outlet Quantity2
    Muffler FinishBlack High-Temperature Paint Finish
    Mount TypeUses Factory Hangers
    Clamps IncludedYes
    FinishNatural
    Exit StyleDual Out Rear
    Muffler Body Height5 in.
    Clamping TypeFlat Band
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler SeriesSuper 40 Series
    Muffler IncludedYes
    Exhaust Tip ConnectionClamp-On
    Tail Pipe Outlet Outside Diameter2.50 in.
    Valve TypeNot Applicable
    Exhaust Tip Diameter3.50 in.
    Part FitmentDirect Fit
    Vendor Part Number817853
    Package Qty1
    Package TypeEA
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    Some parts are not legal for use in California or other states with similar laws / regulations
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