Made in USA
Pro Series Muffler In/Out: 4"
InfoVehicle Info Needed
FLOWMASTERPART NUMBER: 389-14020100

Pro Series Muffler In/Out: 4"

Color:

Black
$30695
2 left in stock
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Standard XL
Pro Series Muffler
  • In/Out: 4"
  • Width: 9"
  • Height: 9"
  • Length: 20"

    FLOWMASTER MUFFLERS 14020100 Features:

    The Pro Series mufflers work on all applications ranging from street trucks, diesel pullers and RV pushers to every class of racing on dirt or asphalt. During development, at the dyno and track, the Pro Series mufflers consistently delivered performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range.
    • High horsepower apps include diesels/RVs/trucks
    • Race Proven Design
    • 409 Stainless Steel Internal Construction
    • Durable fully welded 16 gauge stainless steel case
  • Open Pipe Performance Without The Sound

    Flowmaster's Pro Series Laminar Flow Mufflers work on all applications ranging from sprints and midgets, vintage racing, rock crawlers, and diesel sled pullers. The Pro Series Laminar mufflers consistently deliver performance that is equal to or surpasses open pipe systems, while dramatically reducing sound levels across the RPM range. A key feature is its Cool Shell technology which minimizes the outside case temperature for mounting in and around body panels.

    Show MoreFeatures:
    • Moderate tone.
    • Fully welded 18 gauge stainless steel case.
    • 409 stainless steel internal construction.
    • Race proven design.
    • Reduces sound levels across the RPM range.

    Part TypeMuffler
    Product LineFlowmaster Pro Series Laminar Flow Mufflers
    BrandFLOWMASTER
    Package Height10.5
    Package Width11.0
    Package Length31.0
    Weight21.07 PG
    Part CategoryPerformance Parts
    ShapeRound
    Exhaust Tip Quantity0
    Outlet Quantity1
    Inlet LocationCenter
    Muffler TypeLaminar Flow
    Inlet PositionCenter
    Inlet TypeWeld-On
    Inlet Size (In.)4
    Heat Shield AttachedNo
    Muffler FinishBlack aluminized
    Body Length20 in.
    Muffler Count1
    Inlet Outside Diameter4.13 in.
    Inlet Diameter4 in.
    Body Diameter9 in.
    Clamps IncludedNo
    Inlet Quantity1
    Sound LevelModerate
    FinishHigh-Temperature Paint
    Outlet Outside Diameter4.13 in.
    Muffler MaterialSteel
    ReversibleNo
    Universal Or Specific FitUniversal
    Outlet Size4 in (101.6 mm)
    Hanger IncludedNo
    Outlet Diameter4 in (101.6 mm)
    ColorBlack
    Muffler SeriesPro Series
    TunableNo
    QuantitySold individually
    Overall Length27 in.
    MaterialAluminized Steel
    Case Length20 in (508 mm)
    Internal ConstructionStraight-through baffled
    Case ShapeRound
    Body Width9 in.
    Outlet Inside Diameter4 in.
    Body Material409 Stainless Steel
    Inlet Inside Diameter4 in.
    Outlet LocationCenter
    FitmentUniversal
    Body Height9 in.
    Outlet TypeSingle
    Case Outside Diameter8 in (203.2 mm)
    Part FitmentSemi Universal
    Outlet PositionCenter
    Vendor Part Number14020100
    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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