Original 40 Series Chambered Muffler [Aluminized Steel]
InfoVehicle Info Needed
FLOWMASTERPART NUMBER: 389-42441-FM

Original 40 Series Chambered Muffler [Aluminized Steel]

$4995
ShippingShips on 10/14/2026
Lowest PriceLowest Price Guarantee

Offset In/Center Out
Original 40 Series Chambered Muffler
  • Universal Fit
  • 2.25 in. Inlet/Outlet
  • Offset In/Center Out
  • Chambered Design
  • Oval Body, 13 in. Long
  • 19.4 in. Overall Length
  • Aggressive Sound
  • Aluminized Steel
  • Silver Finish
  • Sold Individually

    This universal original 40 series chambered muffler has 2.25 in. inlet and outlet connections with an offset inlet and a center outlet in a oval body and gives aggressive exhaust tone.

    Flowmaster 42441-FM Technical Specifications:

    • Chambered construction in aluminized steel.
    • Oval body measuring 13 in. long, 9.75 in. wide and 4 in. high.
    • 19.4 in. overall length.
    • Aggressive sound level.

    Flowmaster 42441-FM Compatibility Notes:

    • Universal fit: not a direct fit, so some adaptation is required.
    • Clamps and hangers are not included.

    Emissions Note:

    This part is legal for sale or uses on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

  • Part TypeMuffler
    BrandFLOWMASTER
    Package Height4.8
    Package Width9.9
    Package Length19.8
    Weight9.9 PG
    Part CategoryPerformance Parts
    Inlet LocationOffset
    Muffler TypeReflection
    Heat ShieldNo
    Body Length13 in (330.2 mm)
    Inlet Outside Diameter2.38 in (60.45 mm)
    Inlet Diameter2.25 in (57.15 mm)
    Clamps IncludedNo
    Inlet QuantityOne
    Sound LevelAggressive
    FinishSilver
    Outlet Outside Diameter2.38 in (60.45 mm)
    ReversibleNo
    Hanger IncludedNo
    Outlet Diameter2.25 in (57.2 mm)
    ColorBlack
    Muffler SeriesFlowMonster 2-Chamber
    TunableNo
    QuantitySold Individually
    Overall Length19.4 in (492.76 mm)
    Internal ConstructionChambered
    Case ShapeOval
    Body Width9.75 in (247.65 mm)
    Body MaterialAluminized Steel
    Exit QuantityOne
    Body Height4 in (101.6 mm)
    Outlet TypeSingle
    Part FitmentUniversal
    Outlet PositionCenter
    Vendor Part Number42441-FM
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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