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17428 American Thunder Cat-Back Exhaust System 1999-2006 GM Silverado/Sierra 4.8L/5.3L (Ext Cab)
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FLOWMASTERPART NUMBER: 389-17428

17428 American Thunder Cat-Back Exhaust System 1999-2006 GM Silverado/Sierra 4.8L/5.3L (Ext Cab)

$84995
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GM
American Thunder Cat-Back Exhaust System
  • 1999-2006 GM Silverado/Sierra 4.8L/5.3L (Ext Cab)
  • 2.5" Tubing
  • 3" Polished SS Tips
  • Dual Rear/Side Exit
  • Super 40 Series Muffler
  • Aluminized Steel

    Flowmaster 17428 Features:

    For the person who is looking for an aluminized steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone. The American Thunder system is heavy 16-gauge mandrel-bent aluminized steel tubing for durability and maximum performance. Includes a Super 40™ Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 304 stainless steel tips embossed with the Flowmaster name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. For those who prefer all stainless steel construction with a Lifetime Limited Warranty, check out exhaust system #817428. Notes: Fits 2/4 wheel drive with extended cab/short bed with 143.5-inch wheelbase.

    • Includes Hangers and Hardware for an Easy Installation
    • Mandrel-bent 16-gauge Aluminized Steel Tubing
    • Moderate to Aggressive Exterior Exhaust Tone
    • Connects After Factory Catalytic Converter
    • Dyno-tuned for Maximum Performance
    • Super 40 Series Performance Muffler
    • Uses the Factory Hanger Locations
    • 3-Year Limited Warranty
    • Easy Installation
    • 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 Width15.5
    Package Length58.5
    Weight69.8 PG
    Tailpipe Diameter (In.)2.5
    Muffler Inlet Inside Diameter3 in.
    Hangers IncludedYes
    Main Piping Diameter2.50 in.
    Tail Pipe QuantityDual
    Inlet TypeFlanged
    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 MaterialSteel
    Muffler Body MaterialAluminized Steel
    Exhaust Tip CutAngled
    Gasket Or Seal IncludedNo
    Exhaust Tip IntercooledNo
    Pipe ColorSilver
    System FinishAluminized
    Muffler Quantity1
    Muffler Inlet Outside Diameter3.13 in.
    Exit QuantityTwo
    Tip MaterialStainless steel
    Muffler Flanged OutletNo
    Tip Quantity2
    Exhaust Tip ResonatedNo
    Exhaust TypeDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Exhaust Tip WallSingle Wall
    Exhaust Tip Quantity2
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeRolled Edge Angle Cut
    Valve IncludedNo
    Muffler TypeChambered
    Pipe MaterialAluminized 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 Size2.5 in (63.5 mm)
    FinishAluminized
    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 MaterialSteel
    Valve TypeNot Applicable
    Tip Edge StyleNon-rolled edge
    Tip ShapeRound
    Intermediate Pipe Diameter3 in (76.2 mm)
    Exhaust Tip Diameter3 in.
    Part FitmentDirect Fit
    Vendor Part Number17428
    Package Qty1
    Package TypeEA
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