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817669 American Thunder Cat-Back Exhaust System 2014-2018 GM Silverado/Sierra 1500 5.3L V8
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FLOWMASTERPART NUMBER: 389-817669

817669 American Thunder Cat-Back Exhaust System 2014-2018 GM Silverado/Sierra 1500 5.3L V8

$1,24995
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GM
American Thunder Cat-Back Exhaust System
  • 2014-2018 GM Silverado/Sierra 1500 5.3L V8 (Crew/Double Cab)
  • 2.5" Tubing
  • 3.5" Polished SS Tips
  • Dual Rear/Side Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel

    Flowmaster 817669 Features:

    This Flowmaster American Thunder cat-back exhaust system is custom designed for 2014-2019* (*Classic body) GM Silverado/Sierra 1500 trucks and is perfect for the person looking for a moderate sound level inside the cab area, with an aggressive exterior sound with all of the performance benefits that you expect from Flowmaster. This bolt-on emissions-legal system is for the Crew Cab and Double Cab models with 4.3L or 5.3L engines and comes with your choice of tailpipe exits, either dual out the rear under the bumper, or dual out the sides behind the rear tires. System features include stainless steel mandrel bent tubing flowing into a Super 40 series muffler and exiting with dual 2.50-inch stainless steel mandrel bent tailpipes. The system uses the factory hanger locations and is finished off with a pair of large 3.50-inch polished stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

    • Aggressive Exterior with Moderate Interior Tone
    • Super 40 Series Performance Muffler
    • Delta Flow Technology
    • Custom Fit for Easy Installation
    • All Stainless Steel Construction
    • The Classic Sound of Flowmaster

      Flowmaster American Thunder Exhaust Systems for Truck/SUVs are ideal for the one looking for a moderate-to-aggressive exhaust tone, inside and out. The mufflers are tuned to deliver more power, torque, throttle response, and mileage. With easy fitment in mind, each system has mandrel-bent tubing for maximum performance and flow; and includes all necessary parts and hardware for installation.

    Part TypeExhaust System
    Product LineFlowmaster American Thunder Exhaust Systems for Truck/SUV
    BrandFLOWMASTER
    Package Height12.0
    Package Width16.0
    Package Length58.0
    Weight52.0 PG
    Tailpipe Diameter (In.)2.5
    Muffler Inlet Inside Diameter3 in.
    Hangers IncludedYes
    Main Piping Diameter2.50 in.
    Tail Pipe QuantityDual
    Inlet TypeClamp-On
    Tip CutSlant
    Exhaust Tip Material304 Stainless Steel
    Catalytic Converter Quantity0
    Exit LocationSplit rear/Split side
    Inlet QuantityOne
    Muffler Body Length13.50 in.
    Sound LevelAggressive / Moderate
    Muffler MaterialStainless steel
    Muffler Body Material409 Stainless Steel
    Exhaust Tip CutAngled
    Gasket Or Seal IncludedNo
    Exhaust Tip IntercooledNo
    Pipe ColorSilver
    System FinishNatural
    Muffler Quantity1
    Muffler Inlet Outside Diameter3.13 in.
    Exit QuantityTwo
    Tip MaterialStainless steel
    Muffler Flanged OutletNo
    Tip QuantitySingle
    Exhaust Tip ResonatedNo
    Exhaust TypeDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Exhaust Tip WallDouble Wall
    Exhaust Tip Quantity2
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeAngle Cut
    Valve IncludedNo
    Muffler TypeChambered
    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
    Inlet Diameter3 in.
    Clamps IncludedYes
    Muffler StyleChambered
    Tip Outlet Size3.5 in (88.9 mm)
    FinishNatural
    Exit StyleDual Out Rear
    Muffler Body Height5 in.
    Tip IncludedYes
    Clamping TypeFlat Band
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler SeriesSuper 40 Series
    QuantitySold as a kit
    Muffler IncludedYes
    Exhaust Tip ConnectionClamp-On
    System StyleCat Back
    Tail Pipe Outlet Outside Diameter2.50 in.
    Muffler ConfigurationSingle inlet/Dual outlet
    System MaterialStainless steel
    Valve TypeNot Applicable
    Tip Edge StyleRolled edge, double-wall
    Tip ShapeRound
    Intermediate Pipe Diameter2.5 in (63.5 mm)
    Exhaust Tip Diameter3.50 in.
    Part FitmentDirect Fit
    Vendor Part Number817669
    Package Qty1
    Package TypeEA
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