Free Shipping On Orders Over $49. Details

Talk to a Mustang Expert
1-877-887-1105
Mon - Sun, 8:30 AM EST - 11:00 PM EST
Win 1 of 2 $15,000 Mustang Builds! Enter To Win!

Flowmaster 40 Series Delta Flow Offset/Same Side Out Oval Muffler - 2.25 in. (Universal Fitment)

Market Price $112.99 You Save 9% ($10.29)
Starting At

$102.70 (each)

FREE Shipping

  • Item 399058
  • MPN# 942444

Local Install Shops

Quoted installation from $125

View 3 Shops

near 19355 (change)

Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ASHBURN - 20146
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Aggressive Tone, Reduced Interior Sound
    • Boosts Horsepower and Torque
    • Reflection/2-Chamber Muffler Style
    • 2.25 Offset In / 2.25 Same Side Out Aluminized Steel
    • Same Side Outlet Position
    • Straightforward Cut and Clamp Mounting
    • Made in the USA
    • Universal Fitment; Modifications Will Be Required
    Distinctive Tone. With the Flowmaster 40 Series Delta Flow Offset/Same Side Out Oval Muffler, you can stay street legal while giving your Pony that distinctive, rich Flowmaster exhaust tone. What's more, its two-chamber design and patented Delta Flow deflectors mean you'll notice less in-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 Muffler supercharges your exhaust, giving you a marked increase in torque and horsepower.

    Tough Construction. The Flowmaster 40 Series Delta Flow Offset/Same Side Out 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 Delta Flow Offset/Same Side Out 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

    You Might Also Like

    Customer Photos

    Q & A

    No questions about this product yet.

    Ask the First Question

    Reviews

    Related Mustang Categories