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Magnaflow Street Series Cat-Back Exhaust (99-04 Cobra)

Item 48011
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      Product Information

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


      • Classic Muscle Car Sound
      • Street Series Muffler - Straight-Through Design
      • Durable, Stainless Steel Construction
      • 2.5" Mandrel-Bent Tubing
      • 3.5" Polished Stainless Steel Tips
      • Fits 1999 to 2004 SVT Cobra Mustangs


      Free Flowing Exhaust. Magnaflow delivers the ultimate exhaust for the 1999 to 2004 SVT Cobra with this Cat-Back Exhaust System. By reducing back pressure for a free flowing exhaust, more power and torque will be produced where it belongs - at the rear wheels.

      Classic Muscle Car Sound. The Magnaflow Cat-Back Exhaust System includes a set of two Street Series Mufflers that feature a free-flowing, straight-through perforated stainless steel core, with stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep muscle car tone.

      Quality Construction. Each piece of this Magnaflow Cat-Back Exhaust is crafted from 2.5" mandrel bent stainless steel tubing for long life and a perfect fit. The system ends with brightly polished 3.5" stainless steel tips that exit from the stock location for impressive good looks.

      Application. Made as a direct bolt on, this Magnaflow Cat-Back Exhaust will bolt straight up to the factory Mid Pipe without any modifications required on the 1999 to 2004 IRS equipped SVT Cobra Mustangs to give it a deeper, classic sound.

      Note. Coupon codes cannot be applied to this product.

      Fitment: 1999 2001 2003 2004 Details

      MPN# 15644

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (16)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 16 customers

      Installation Time: Afternoon

      Installation Cost: $250-$500

      • June 21, 2017

        5 2003 Cobra - malcolms Installation Time: Less than 1 Hour

        magnaflow cat-back exhuast 03 cobra

        the magnaflow system is a good sounding system. i havethe magna another 03 cobra with the borla stingers on it and the magnafolw isnt as raspy sounding as the borla system but i like the both i would recomend the magna flow to anyone cause it sounds great for the money .the magnaflow is a well designed kit with no trouble installing and has good construction. really great for the price

        Helpful (6)
      • February 23, 2017

        5 1999 Cobra - 99Cobra Installation Time: Less than 1 Hour

        Magnaflow Street Series

        I bought this catback for my 99 cobra thinking it would be loud enough. I installed this and was shocked that it sounded near stock. BUT........ I then bought a bassani off road x pipe. WOW!!! It sounds incredible. Great tone and very loud when you are on the throttle, but very docile when you drive normal. Definitely recommend if you have the money to buy an O/R x pipe as well.

        Helpful (9)
      • September 15, 2016

        5 1999 Cobra - Hawk Installation Time: Afternoon

        Buy it

        These pipes looks and sound fantastic, putting them on was a piece a cake, clamps are the best I've ever seen

        Helpful (8)
      • August 22, 2016

        5 2001 Cobra - Ryan

        Nice deep growl

        Went from Flowmaster 44 series to magnaflow catback with LT headers and Catless x pipe and love it. Sounds quieter in the car but it gives a deeper growl. Puts more bass in it for say. Performance is up aswell at least my butt dyno says so.

        Helpful (8)
      • June 07, 2016

        4 2001 Cobra - M4459 Installation Time: Afternoon

        Sounds great!!

        I installed the magnaflow catback system in about 3 hours. The fitment is great, and it sounds great. It's a little quiet for my taste with the factory mid pipes, but it sounds great.

        Helpful (7)
      • November 11, 2015

        5 2003 Cobra - Trmnatr Installation Time: Shop Install


        Perfect exhaust note for a muscle car sound. Nice deep bass howl. Louder than American thunder. Not to loud at crusing speed. Love it!!!

        Helpful (7)
      • March 16, 2014

        5 2003 Cobra - 03cobralover Installation Time: Afternoon

        03 cobra nice choice

        It is a very good sounding exhaust and if ur not wanting it to be over the top loud. This is ur exhaust. . The tone is deff the muscle car sound u want. But when ur driving the exhaust goes so well with the gears and can be quiet if u want it to be. it works very well for me. I difinitly recommend this exhaust and im sure with the magnaflow x pipe it will be loud if that is what u want.

        Helpful (5)
      • August 16, 2012

        5 2003 Cobra - Rexamus Installation Time: Shop Install Installation Cost: $250-$500

        Awesome sound

        Sounds great. Bought this with the SLP Long tubes and catted x-pipe. Nice mellow sound until you hit the go pedal and then it roars.

        Helpful (8)
      • April 27, 2012

        5 2003 Cobra - Clate Installation Time: Afternoon

        Best buy

        Perfect sound awesome look. Easy install. Goes great with upr o/r x

        Helpful (8)
      • February 02, 2012

        5 1994 GT - seijirou Installation Time: Afternoon

        Excellent catback

        I've had this catback for several months now, and I love it. Installation on an IRS equipped car is very easy and can be done in a driveway with some jack stands and hand tools. I used this catback for my IRS swap in to my '94 GT. The 79-93 foxbodies are the same underneath, so anybody looking for an IRS swap catback that will work, this will work. There are no connections in the tailpipes that you can see from behind the car like some other systems, so you get a very nice clean look. The flowtubes don't come fixed to the mufflers, so you can install them loose and rotate them to change the height and side-to-side placement of the muffler itself for a perfect fit before final tightening. The exhaust tips themselves are polished and beautiful. Finally the sound is amazing. The note is round and throaty, climbing to a roar when you open the car up. No tinny noises, no raspy noises.

        Helpful (9)

      Questions & Answers (4 answers)

      4 Top Rated Questions

      what is dia of pipe

      • This will be a 2.5" mandrel bent piping.

      Helpful (0)

      how much increase in power/noise

      • Generally with cat-back exhausts you can see up to a 5-10 HP increase. In terms of sound, you'll definitely have a much more aggressive exhaust tone when compared to stock.

      Helpful (0)

      In the "what's in the box" section for this set, it says there are 2 over the axle pipes. Why? These models are IRS so does it fit correctly or do I just need to buy Borla?

      • The Magnaflow Cat-Back Exhaust will work with the 99-04 Cobra Mustangs with the IRS suspension. You will not need to buy any other parts for a proper install.

      Helpful (0)

      How long are the exhaust tips in this kit?

      • The Magnaflow Cat-Back Exhaust will have 16" tips that are 3.5" In diameter.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Flow Tubes
      • (2) Mufflers
      • (2) Over Axle Pipes
      • (2) Polished Tips
      • (6) Band Clamps
      • (2) Hanger Rods

      Tech Specs

      Cat-Back Exhaust Specifications
      Piping Material:Stainless Steel Tip Material :Polished Stainless Steel
      Piping Size:2.5"Tip Size:3.5"
      Muffler Type:Straight-throughFitment:1999-2004 Cobra

      Will It Fit My Mustang

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