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Magnaflow Cat-Back Exhaust (99-04 Cobra)

Market Price $747.04 You Save 12% ($85.94)
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  • Item 48011

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    Features & Details

    • 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 -

    What's in the Box
    • (2) Flow Tubes
    • (2) Mufflers
    • (2) Over Axle Pipes
    • (2) Polished Tips
    • (6) Band Clamps
    • (2) Hanger Rods
    Installation Info
    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-through Fitment: 1999-2004 Cobra
    Will it fit my Mustang?

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    Questions & Answers (4)

    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

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    Customer Reviews (16) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$250-$500

    • Loudness / Volume 4.111111 4.1
    • Exhaust Note 4.888889 4.9
    • Fit & Finish 4.666667 4.7
    • Bang For Your Buck 4.777778 4.8

    • 5/5

      Installation Time: Less than 1 Hour

      June 21, 2017

      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


      Year: 2003 Submodel: Cobra

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      February 23, 2017

      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.


      Year: 1999 Submodel: Cobra

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      September 15, 2016

      Buy it

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


      Year: 1999 Submodel: Cobra

      Helpful (7)

    • 5/5

      August 22, 2016

      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.


      Year: 2001 Submodel: Cobra

      Helpful (8)

    • 4/5

      Installation Time: Afternoon

      June 07, 2016

      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.


      Year: 2001 Submodel: Cobra

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      November 11, 2015


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


      Year: 2003 Submodel: Cobra Omaha be

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      March 16, 2014

      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.


      Year: 2003 Submodel: Cobra San Antonio, TX, USA

      Helpful (5)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      August 16, 2012

      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.


      Year: 2003 Submodel: Cobra

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      April 27, 2012

      Best buy

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


      Year: 2003 Submodel: Cobra Little Rock, AR, USA

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      February 02, 2012

      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.


      Year: 1994 Submodel: GT Herndon, VA

      Helpful (9)

    • 5/5

      May 07, 2011

      Best Exhaust!

      Best exhaust! real loud! I love it on my cobra. I have gotten more compliments on this exhaust then I have with any others..5 star!!!


      Year: 1999 Submodel: Cobra

      Helpful (8)

    • 4/5

      July 14, 2010

      Sounds great

      I first installed this with the factory catted midpipe and it sounded fantastic, but didn't fit all that well. The pipes are just a bit too long and I couldn't quite get enough clearance, so one of the pipes would occasionally bang on the gas tank cover. Also, the brackets for the tip hangers are welded too far back, leaving no room for adjustment, and forcing the hanger bars into the space behind the bumper cover. When I installed a Magnaflow catless midpipe the length issue was corrected and there was no longer an issue with hitting the gas tank cover. Overall very nice product, just needs minor attention to fitment issues.

      Jon Manning

      Helpful (13)

    • 5/5

      April 03, 2010

      Magnaflow Cat Back

      These have really good fit and finish. They are a very well built system. They aren't annoyingly loud, but they are loud when they need to be. The make good performance gains and have a nice deep tone to them.

      Nick G

      Helpful (13)

    • 4/5

      February 24, 2010

      Magna Flow after cat exhaust

      Flawless fit and finish. I wish that the system was louder -- not Flow Master loud, but louder than it is. .

      Bill Norton

      Helpful (9)

    • 5/5

      August 15, 2008

      the best mufflers

      these things are amazing ,they\'re so loud

      Brenda Tesch

      Helpful (11)

    • 5/5

      September 25, 2007


      Great fit and finish, Awesome sound.

      Dave G

      Helpful (10)

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