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Flowmaster 40 Series Offset/Offset Oval Muffler - 3.0 in. (Universal Fitment)

Market Price $97.99 You Save 12% ($12.13)
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$85.86 (each)

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  • Item 399060
  • MPN# 43043

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Quoted installation from $125

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Ship to: ASHBURN - 20146
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    Features & Details

    • Aggressive Exterior Tone
    • Increased Horsepower and Torque
    • Muffler Style: Reflection/2-Chamber
    • 3.0 Offset In / 3.0 Offset Out; Aluminized Steel Build
    • Offset Outlet Position; No Tip
    • Quick Cut & Clamp Mounting
    • Made in the USA
    • Universal Fitment; Modifications Will Be Required
    Aggressive Sound. Let them know you're coming with the Flowmaster 40 Series Offset/Offset Oval Muffler. With its generous 3-inch body diameter, this exhaust upgrade delivers a more aggressive (though still street-legal) exterior tone and a noticeable interior resonance that will have you feeling (and hearing) the true power of your 'Stang.

    Increases Torque/Horsepower. Is your stock muffler robbing your 'Stang's performance? The two-chamber, precision-deflector design of the Flowmaster 40 Series Muffler supercharges your exhaust, giving you a marked increase in torque and horsepower.

    Tough Construction. The Flowmaster 40 Series Offset/Offset Oval Muffler is crafted from durable 16-gauge aluminized steel and is completely MIG-welded for the ultimate in strength and durability. 40 Series Mufflers also don't have any packing, so there's nothing to blow out.

    Modifications Required. This Muffler was designed to be used on mutliple applications, as it is not a direct fit replacement part. In order to install this Muffler properly on your vehicle, some modifications to the exhaust system will be required.

    Application. The Flowmaster 40 Series Oval Muffler is built specifically to fit all 1979-2004 Mustangs, excluding 1999-2004 Cobras.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (1) Muffler
    Installation Info
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 93, 95
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

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    Customer Reviews (1) Write a Review

    Overall Rating 3

    out of 5 stars

    Installation Time:Shop Install

    Installation Cost:0-$100

    • Loudness / Volume 3 3
    • Exhaust Note 5 5
    • Fit & Finish 4 4
    • Bang For Your Buck 4 4



    • 3/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      June 27, 2018

      Very good quality

      Have yet to install them, but arrived at a decent pace and was very impressed.

      JacobF

      Year: 2003 Submodel: GT

      Helpful (1)

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