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Flowmaster 40 Series Delta Flow Offset/Offset Oval Muffler - 2.25 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 399054
  • MPN# 942443

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

Features & Details

  • Unmistakable Flowmaster Exhaust Tone
  • Boosts Torque and Horsepower
  • 2-Chamber Design with Delta Flow Technology
  • Aluminized Steel; 2.25 Offset In / 2.25 Offset Out
  • Standard Outlet Style without Tip
  • Install: Cut and Clamp
  • Muffler Sold Individually
  • Fits All 1979-2004 Mustangs, Excluding 1999-2004 Cobra
Flowmaster Rumble. There's no mistaking the rich, natural growl of a Flowmaster muffler. And, with its two-chamber design and Delta Flow Deflectors, the Flowmaster 40 Series Delta Flow Offset/Offset Oval Muffler adds that snarl to your 'Stang; all while keeping your cabin noise to minimum.

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 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.

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

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