Win $5,000 For Your Mustang! Enter Now!
Talk to a Mustang Expert
1-888-332-7930
Mon - Sun, 8:30 AM EST - 11:00 PM EST

Free Shipping On Orders Over $49. Details

Flowmaster 40 Series Delta Flow Center/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)

FREE Shipping
  • Item 399046
  • MPN# 942442

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

Features & Details

  • Natural Tone; Reduced Interior Noise
  • Maximizes Torque and Horsepower
  • Offset Oval, Chambered Muffler Design
  • 2.25" Aluminized Steel Construction
  • Standard Outlet Style; No Tip
  • Clamp Installation
  • Sold Individually
  • Fits All 1979-2004 Mustangs, Excluding 1999-2004 Cobra
Flowmaster Sound. Get an aggressive, more natural rumble without impacting your performance thanks to the Flowmaster 40 Series Delta Flow Center/Offset Oval Muffler. This exhaust upgrade for 1979-2004 Mustangs uses a two-chambered design and Flowmaster's patented Delta Flow technology to achieve better scavenging, giving you better performance while reducing cabin noise.

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

Customer Photos

You Might Also Like

Q & A

No questions about this product yet.

Ask the First Question

More Products You Might Like

Reviews

Related Mustang Categories