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Flowmaster Super 40 Series Offset/Same Side Out Oval Muffler - 3.0 in. (79-04 All, Excluding 99-04 Cobra)

Market Price $112.99 You Save 12% ($13.29)
Our Price

$99.70 (each)

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  • Item 399100
  • MPN# 953049

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Features & Details

  • Muscle “Growl” Sound and "Flowmaster" Embossed
  • Two-Chamber Design
  • Extra Power and Classic Chamber Sound
  • Offset Inlet/Outlet Design
  • Inlet/Outlet Diameter: 3.0"
  • Aluminized Steel Build
  • Flowmaster Lifetime Warranty
  • Fits all 1979 to 2004 Mustang Models Excluding 1999-2004 Cobra Models
Classic Muscle Car Roar. Bid farewell to the restrictive muffler that is hindering your Mustang's performance by enhancing exhaust flow with the Flowmaster Super 40 Series Oval Muffler. This muffler does more than add aesthetics to your ride. It features two-chamber technology that creates a signature Flowmaster exhaust sound. Notice how your vehicle achieves better horsepower and torque with this muffler's inlet/outlet design, which has been built using the highest quality aluminized steel.

Remarkably Efficient Design. Replacing your stock restrictive muffler with the Flowmaster Super 40 Series Offset/Same Side Out Oval Muffler - 3.0 will be a decision you never regret. Additional engine power will be released via the robust aluminized steel construction, allowing for the simple transfer of exhaust gases. As a result, your Mustang sounds better, becomes more efficient and emits fewer harmful gases.

Warranty. With every purchase of a Flowmaster Super 40 Series Oval Muffler, a Lifetime Limited Warranty comes as standard. Flowmaster's warranty can be redeemed by the original purchaser. Coverage remains valid for workmanship or material-related defects. It is void in cases of misuse, poor installation and normal wear.

Application. The Flowmaster Super 40 Series Offset/Same Side Out Oval Muffler - 3.0 is specially crafted for application with all Mustang models between the years 1979 and 2004. The set is not suitable for 1999-2004 Cobra Mustangs. The muffler contained in the box features an offset configuration to perfectly match its inlet/outlet diameter. Set aside at least two hours for installation, which is described as "light to moderate".

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 Guide
Installation Info
Will it fit my Mustang?
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Bullitt - 01
  • Cobra - 94, 95, 96, 97, 98, 93
  • Mach 1 - 03, 04

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