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Flowmaster 40 Series Delta Flow Offset/Offset Oval Muffler - 2.5 in. (79-04 All, Excluding 99-04 Cobra)

Market Price $128.99 You Save 12% ($14.91)
Our Price

$114.08 (each)

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  • Item 399056
  • MPN# 842543

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Flowmaster Exhaust Tone, Reduced Cabin Noise
  • Maximum Gains in Horsepower and Torque
  • 2-Chamber/Reflection Design
  • Stainless Steel Construction; 2.50 Offset In / 2.50 Offset Out
  • No-Tip, Standard Outlet Style
  • Simple Cut and Clamp Installation
  • Sold Individually
  • Fits All 1979-2004 Mustangs, Excluding 1999-2004 Cobra
Flowmaster Growl. Let the world hear your Mustang's rich rumble while keeping your cabin noise levels pristine thanks to the Flowmaster 40 Series Delta Flow Offset/Offset Oval Muffler. It features a two-chamber design and is equipped with Delta Flow Deflectors, which helps it scavenge better, giving you a deep, natural muscle car tone.

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

Tough Construction. The Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler is crafted from durable 16-gauge 409s stainless 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.

Cut & Clamp Installation. Flowmaster makes it easy to install the 40 Series Delta Flow Muffler. With the proper clamps and hangers (not included), installation should take you less than two hours.

Application. The Flowmaster 40 Series Delta Flow Center/Offset 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?
  • 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

Not Compatible with 1999-2004 Cobras

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