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Magnaflow Performance Offset/Offset Oval Satin Muffler; 2.50-Inch (Universal Fitment)

Item 384329
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Classic Muscle Car Sound
      • Straight-Through Perforated Tube Design
      • Stainless Steel Construction
      • Oval Case - 4" X 9" X 14"
      • Overall Length 20"
      • Offset Inlet and Outlet Design
      • 2.5" Inlet/Outlet Diameter
      • Bright Satin Finish
      • Reversible for Custom Applications
      • Sold Individually
      • Universal Fitment; Modifications Will Be Required


      Classic Muscle Car Sound. Give your Ford Mustang the deep, classic muscle car sound it deserves with a set Magnaflow Performance Series Mufflers. Magnaflow Performance Series Mufflers feature a free-flowing, straight-through perforated stainless steel core, stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep tone.

      Magnaflow Quality. Manufactured from 16 gauge stainless steel for it's corrosion resistant properties, this Magnaflow Performance Series Muffler features lap-joint welds for rock solid construction and reliable durability even in the most extreme conditions. Magnaflow backs their mufflers with a Lifetime Warranty.

      Specifications. The Magnaflow Performance Series Muffler's outer case measures 4" x 9" x 14" with and overall length of 20", and features a 2.5" diameter inlet and outlet in an offset configuration. Magnaflow mufflers are reversible making them perfect for custom applications.

      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. This Satin Finish Magnaflow Performance Series Muffler will fit 1979 to 2004 Mustangs, including the LX, V6, GT, Bullitt, Mach 1 and 1994-1998 SVT Cobra models equipped with a 2.5" diameter exhaust system. Excludes 1999-2004 SVT Cobras with IRS. Sold individually.

      Note. Coupon codes cannot be applied to this product.

      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

      Magnaflow 11236

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (15)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 15 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • January 17, 2020

        5 1996 GT - Dano24 Installation Time: Afternoon

        A little too quiet

        I had a set of these several years ago but I don't remember them being so quiet. Sound awesome over 3000 RPM though.

        Helpful (3)
      • March 25, 2019

        5 1991 LX - DonaldH Installation Time: Afternoon

        Magnaflow Muffler

        Previously had Flowmasters on my 91 LX but wanted to go a different route and Magnaflow came highly recommended after all the reviews I did. Easy install, sounds great, less drone noise than the flowmasters...highly recommend these mufflers! Took me a bit to install due to the flow tubes not sweating right and getting the hangers just right. But easy otherwise.

        Helpful (5)
      • February 12, 2019

        5 1993 GT - ShastaE

        Great sound! No drone!

        I once had flowmasters on my Fox, and though they sounded great, made an unbearable drone inside the car when driving at freeway speeds. These Magnaflows fixed all that. Plus they sound just as good (maybe better?) than my old flows!

        Helpful (5)
      • November 15, 2018

        5 1988 LX - Eric Installation Time: Less than 1 Hour


        Totally recommend it gives your stang a nice tone to it not to loud not to quiet I have these in both my mustangs!!

        Helpful (5)
      • November 07, 2018

        5 2001 GT - NandoA Installation Time: Afternoon

        2001 5.4 DOHC Swapped Mustang Magnaflow

        I installed a set of dual Magnaflow mufflers on my 5.4 DOHC swapped 2001 GT. The previous mufflers were Flowmaster 40 series. The new Magnaflows fit and looked great! As far as sound they are quieter than the 40's but had a much deeper rumble, good sound while idling but a deep rumble when you get on it! They have much less of a drone on the highway than the 40's did. They looked great, workmanship was spot on. No complaints.

        Helpful (6)
      • June 21, 2018

        2 2003 Mach 1 - Mach500 Installation Time: Less than 1 Hour

        Overwhelming sound at high RPM

        Sliwtched from flowmaster 40s to the magnaflow, and loved the sound crusing and idle, but when you get on it its just flat and loud.

        Helpful (7)
      • May 29, 2018

        5 1991 LX - AnthonyT Installation Time: Afternoon

        Fit Great and Sound Great

        These are some really high quality mufflers. Coming from Flowmaster's these certainly made my drive and the tone of my car much more enjoyable. The quieted down my ride, as well as the notorious flowmaster drone. Highly Recommend, they sound great.

        Helpful (10)
      • December 11, 2017

        5 2004 GT - KerryE Installation Time: Afternoon

        Great sound

        As much as I liked the sound of my Flowmaster mufflers, when I added off road cat-less X-pipes, the cabin noise and drone effect was absolutely awful and it gave one a headache while riding in the car at all. When I switched to these Magnaflow mufflers, the terrible droning noise in the cabin was replaced by the strong rumble that Magnaflow is known for. Well worth the change

        Helpful (11)
      • November 11, 2017

        5 1997 Cobra - dustinp Installation Time: Less than 1 Hour

        97 cobra

        Sounds great would buy them again. Price was right.

        Helpful (9)
      • September 08, 2017

        5 2003 GT - EddieH Installation Time: Less than 1 Hour

        way better than flowmaster sound to me

        Well when I got car had factory x pipe with all cats remove and 40 flowmasters. It sounded good to some people. To me to loud and the drone inside of car was just to much. Lol getting older and wanted a better quality sound and lower tones from exhaust. Put the magnaflow catted x pipe in and then topped it of with these magnaflows from american muscle and couldn't be happier. So much smoother of a sound. Lower and just a very clean sounding exhaust. Not for the guys who want to have the loudest but if you want a good clean exhaust magnaflow is the way to go

        Helpful (14)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      Will this muffler fit on a stock exhaust pipe for a 96 gt

      • This will not be a direct fit application, additional modifications are required.

      Helpful (0)

      Will these mufflers fit on the pypes turn duel off road exhaust system for the V6. I want these instead of the street-pro mufflers.

      • Yes, these are compatible with the Pypes exhaust. However, due to them being a universal fitment, you may need to make some modifications.

      Helpful (0)

      I have SLP loud mouth catback on my 2002 GT. If I remove the resonators would these fit into the existing catback?

      • This muffler is designed to be universal as it can be used on multiple applications. Being this is not a direct replacement part, modifications will be required to install this properly on your exhaust.

      Helpful (0)

      Will this muffler fit on my 2016 Mustang GT?

      • The Magnaflow Performance Series Oval Satin Muffler would require significant modification and custom work to install on a 2016, and may be too long for a 2016 Mustang, in addition to not having the necessary hangers. We recommend an axleback designed for the 2016 Mustang for a trouble free fitment.

      Helpful (0)

      Is this the same muffler that is used in the Magnaflow Street axleback (11-14v6)?

      • Hi, This Magnaflow Performance Series Offset 4x9 Muffler is a universal fit muffler for 79-04 Mustangs except the 99-04 Cobras, The Magnaflow Street Axle-back Exhaust is a direct bolt on for 11-14 V6 Mustangs.

      Helpful (0)
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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler

      Tech Specs

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