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Turbine Performance Muffler, Inlet/Outlet: 4 in., Overall Length: 20 in. [Mirror Polished Finish]
InfoVehicle Info Needed
AERO EXHAUSTPART NUMBER: 889-AT4040

Turbine Performance Muffler, Inlet/Outlet: 4 in., Overall Length: 20 in. [Mirror Polished Finish]

$21999
ShippingShips on Sep 07, 2026
Lowest PriceLowest Price Guarantee

Turbine Performance Muffler
  • Inlet/Outlet: 4 in.
  • Body Diameter: 6 in.
  • Body Length: 14 in.
  • Overall Length: 20 in.
  • 304 Stainless Steel
  • Mirror Polished Finish
  • Sold Individually

    Aero Exhaust AT4040 Turbine Performance Muffler Features:

    • Provides increases in horsepower, torque, and fuel economy
    • Throaty, aggressive sound output
    • Patented Airfoil Cone Technology to enhance the exhaust flow and performance - No internal packing
    • Fully-welded stainless construction
    • Stamped Aero Exhaust logo on the muffler body
    • Part TypeMuffler
    BrandAERO EXHAUST
    Package Height7.0
    Package Width7.0
    Package Length21.0
    Weight5.0 PG
    Muffler Body Material304 Stainless Steel
    Outlet Size4 in (101.6 mm)
    Tip IncludedNo
    Hanger IncludedNo
    Outlet QuantityOne
    QuantitySold individually
    Inlet LocationCenter
    Inlet Size (In.)4
    Internal ConstructionStraight-through
    Case ShapeRound
    Heat Shield AttachedNo
    Muffler FinishPolished
    Outlet LocationCenter
    Clamps IncludedNo
    Inlet QuantityOne
    Case Outside Diameter6 in (152.4 mm)
    Muffler Body Length14 in.
    Sound LevelAggressive
    Exit StyleStraight
    Overall Length (In)20 in.
    Vendor Part NumberAT4040
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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    Some parts are not legal for use in California or other states with similar laws / regulations
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