818121 American Thunder Axle-Back Exhaust System Fits Select Ford Bronco 2.3L/2.7L
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FLOWMASTERPART NUMBER: 389-818121

818121 American Thunder Axle-Back Exhaust System Fits Select Ford Bronco 2.3L/2.7L

$54995
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American Thunder Axle-Back Exhaust System
  • Fits Select Ford Bronco 2.3L/2.7L
  • 3 in. Tubing
  • 3 in. Stainless Tip
  • Single Rear Exit
  • 409 Stainless Steel

    FLOWMASTER MUFFLERS 818121 Features:

    Flowmaster introduces our American Thunder axle-back exhaust system for the 2021-2023 Ford Bronco with the 2.3 or 2.7-liter engine. This system uses a tuned 60 Series style muffler for an aggressive to moderate exhaust tone and increased performance. Maximum dyno gains of 19 hp and 19 lb-ft. were measured at the rear wheels. 3.00-inch mandrel bent 409 stainless steel tubing is used to maximize exhaust flow and durability. A polished 3.00-inch stainless steel tip is used to add a custom look to this iconic vehicle. All of the necessary hardware is included and factory mounting locations are used for an easy installation.

    • 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
    • A 3.00-inch polished stainless steel tips add a custom look
    • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
    • A tuned 60 Series performance muffler delivers a deep, aggressive to moderate performance tone and improves exhaust flow
    • Delta Flow Technology Increases Performance and Reduces Drone
    • 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 Height10.0
    Package Width20.5
    Package Length40.5
    Weight35.75 PG
    Muffler Inlet Inside Diameter3 in.
    Hangers IncludedYes
    Main Piping Diameter3 in.
    Tail Pipe QuantitySingle
    Inlet TypeClamp-On
    Inlet Size (In.)3
    Exhaust Tip Material304 Stainless Steel
    Catalytic Converter Quantity0
    Exit LocationSingle Rear
    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 LocationOffset
    Catalytic Converter IncludedNo
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Exhaust Tip WallSingle Wall
    Exhaust Tip Quantity1
    Muffler Inlet LocationCenter
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeSlash 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 Quantity1
    Muffler FinishBlack High-Temperature Paint Finish
    Mount TypeUses New Hangers (Included)
    Clamps IncludedYes
    FinishPainted
    Exit StyleSingle Out Rear - 2 and 4-Door
    Muffler Body Height5 in.
    Clamping TypeFlat Band
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler Series60 Series
    Muffler IncludedYes
    Exhaust Tip ConnectionWelded
    Tail Pipe Outlet Outside Diameter3 in.
    Valve TypeNot Applicable
    Exhaust Tip Diameter3 in.
    Part FitmentDirect Fit
    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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