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Magnaflow Race Series Axle-Back Exhaust (05-09 GT, GT500)

Item 48059
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      Review & Installation Video

      Hey, Justin here with, here with a quick break down and sound clip of Magnaflow’s muffler deleting axle back exhaust, fitting all 2005-2009 Mustang GTs, all 2007-2009 GT500’s.Ok let’s get the obvious out of the way, if you’re looking for a mild or quiet exhaust, you’ve come to the wrong place, the muffler deleting axle back from Magnaflow will give your 3 valve one of the most aggressive tones imaginable with the cats in place. Remove the cats, and the sound gets even crazier, of course any time you do that you’re running the risk of getting some rasp, but that’s to be expected any time you delete the cats and remove the mufflers. At first glance you can see that this exhaust is really nothing more than a fancy street pipe, all exiting out there brightly polished 3 ½” tips. I know that some of you may be thinking the price is a little on the high side considering such a simple design, but you have to factor in Magnaflow’s top notch quality and construction, in addition to the perfect fitment which do factor into the price. Speaking of the construction, Magnaflow went full stainless, from the 2.5” mandrel bent tubing, to those brightly polished 3 ½” tips I just mentioned. That stainless construction is going to save you a few pounds versus your factory axle back, in addition to looking good and resisting corrosion for years to come. This is a fairly easy install here considering you’re only replacing the Axle-back portion of your exhaust, with that said, just be sure to leave yourself about an hour to get everything bolted up. Now let’s hear how the Magnaflow muffler deleting axle back sounds compared to our factory exhaust.

      Product Information

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


      • Loud, Aggressive Sound
      • Race Series
      • 2.5" Mandrel-Bent Stainless Steel Tubing
      • 3.5" Polished Stainless Steel Tips
      • Fits 2005-2009 GT, Bullitt and GT500 Mustangs


      Loud Aggressive Sound. This Magnaflow Race Series Axle-Back will give you the loudest most aggressive sound possible without having to replace your entire catback system. This Magnaflow Axle-Back features a unique muffler delete design that replaces your stock wimpy-sounding mufflers for a much louder and more aggressive tone.

      Quality Magnaflow Construction. The Magnaflow Race Series Axle-Back system is constructed from mandrel bent 2.5" stainless steel tubing for long life and a perfect fit. The system features a muffler delete design that ends with brightly polished 3.5" stainless tips, that exit in the stock location for impressive good looks.

      Application. Made to be a direct bolt on, this Magnaflow Race Series Axle-Back will bolt right up with no modifications required to fit the 2005 to 2009 GT, Bullitt and Shelby GT500 Mustangs for the deepest aggressive sound possible.

      Note: Coupon codes cannot be applied to this product.

      Technical Note: Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.

      Fitment: 2005 2006 2007 2008 2009 Details

      Magnaflow 16843

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (18)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 18 customers

      Installation Time: Less than 1 Hour

      Installation Cost: 0-$100

      • May 01, 2018

        5 2007 GT500 - AndreR

        Very loud

        These were everything that I expected and more. Very worth the money

        Helpful (4)
      • February 27, 2018

        3 2008 GT - TammiW

        Very misleading ease of installation.

        Says exact match and stock exhaust. But when you go to put in the hangers only on the passenger side but I got to take it to a muffler shop and have the One support taken off and welded.

        Helpful (5)
      • February 25, 2018

        5 2006 GT - ChrisH Installation Time: Less than 1 Hour

        Truly agressive

        Added these pipes along with air aid CAI and throttle body spacer and not only does it sound awesome but all together I would have to guess these add ons in conjunction probably added 20 to 25 horsepower . Now when I grab second gear she rips the tires loose

        Helpful (6)
      • August 01, 2017

        3 2008 GT - BrandonS Installation Time: Less than 1 Hour

        Magnaflow Race Series

        Coming from magnaflow I was expecting a lot better. Welds are not good had two pices of wire inside the tubes I had to break off and get out. And the fit was way off had to modify my brackets. But SOUNDS GOOD and performs great.

        Helpful (7)
      • January 20, 2017

        3 2006 Other - 06roush Installation Time: Afternoon

        Great sound, bad fit

        First off I want to say these sound great. Just the way I wanted it to sound. But they just did not at all fit. I had to cut the hangars off and re weld them where I wanted them. From all the reviews I read. It sounded like they went right in. Not the case in my 2006/roush. But overall great product

        Helpful (6)
      • September 17, 2016

        5 2005 GT - Cherry Installation Time: Less than 1 Hour

        Magnaflow Race Series Axle-Back Echaust

        The design is clean, the crome makes the pipes stand out more. The sound is extremely load, makes heads turn everywhere you go. Money well spent.

        Helpful (6)
      • June 25, 2016

        5 2007 GT500 - Gus Installation Time: Less than 1 Hour

        Magnaflow Race Series Muffler Delete axle-back

        Like most of you, I have looked and read and listened. Finally, I decided on the Magnaflow RACE muffler delete axle-back. My 2007 GT500 was very quiet and I wanted it to sound like it looked and ran. My biggest concern, when looking for new exhaust, was I'd end up buying something, not loud enough. The systems with mufflers...just didn't sound good enough to me. Once I heard the Magnaflows with no mufflers....that was it. I bought them from AM and they were here in no time. The pipes and tips are stainless...welds are perfect and they fit and line up easily. Not being able to see mufflers hanging under the car in back...makes it look alot better. You can spend alot of time, trying to get the old mufflers out, irregardless of what you've read or heard. Or you can cut the old muffler's hanger rods. It is not easy to get them out of the rubber and and out, if you don't. And if you pull the hangers instead, you better have some tools and time. l found....once the old mufflers are will be able to install the new pipes, much easier, if you disconnect the mid-pipe, forward of the axle and drop those pipes a few inches, so you have some play, to get the new pipes hanger rods into the rubbers and line it all up. Then...just tighten the mid-pipes back up and you got it. It sounds perfect idling...and gets louder as you throttle it, as expected, but a good sound. At 70-80mph...the stock tires, are louder than the exhaust inside the car and I have no drone to speak of. It is the perfect way to get the sound you want, clean the rear of the car up...seeing no hanging mufflers any longer and gaining some felt, horsepower. Let it breath! Buy these and smile.

        Helpful (8)
      • June 24, 2016

        5 2007 GT - RAM Installation Time: Less than 1 Hour

        Magnaflow exhaust

        These sound awesome! Very easy to install and they look great!

        Helpful (9)
      • April 12, 2016

        5 2007 GT - Nic2007stang Installation Time: Less than 1 Hour

        BEST SOUND!!!

        I was so happy with my purchase! I love your website allowed me to listen to all the available systems so I could pick the best one for me.

        Helpful (6)
      • July 17, 2015

        5 2009 GT500 - 3142 Installation Time: Less than 1 Hour

        Outstanding !

        Absolutely made the right decision getting these axle backs. They brought out the real sound of my 2009 Shelby GT500 ! I highly recommend these to anyone . If you want to make your GT500 stand out from the rest of the crowd then get these. You will not be sorry ......

        Helpful (5)

      Questions & Answers (14 answers)

      5 Top Rated Questions

      Are these legal in Missouri

      • Due to variations in state laws, we cannot guarantee these are 50 state legal. We would suggest speaking to your local Department of Transportation or a local shop.

      Helpful (0)

      Does this product increase horsepower

      • This exhaust will change the tone and volume of your exhaust but you will not see an increase in horsepower.

      Helpful (0)

      does this include both? or do. I have to buy two of them

      • They are sold in pairs, enough for one vehicle.

      Helpful (0)

      will I get drone noise with these?

      • The magnaflow may have some drone, yes.

      Helpful (0)

      I have a 2007 v6 with the pypes dual conversion exhaust, would this provide a louder sound on my v6? Or would the flow master outlaw be louder?

      • Both exhausts will be close to the same sound. We recommend listening to some exhaust clips to hear which one you like the best.

      Helpful (0)
      Post Your Question
      9 More Questions
      How much louder would this axle back make the pypes dual conversion exhaust kit on a v6? 1 answer
      I have dual exhaust on my 2005 v6 Mustang how would they sound on it 1 answer
      What's the difference between magnaflow race series and magnaflow with magnapack and which one is more louder and aggressive which one has little or no drone 1 answer
      Will this give any performance gains? 1 answer
      Are these legal inn the state of Utah? 1 answer
      Hey because it's kinda like a straight pipe , do it hurt your car in anyway? 1 answer
      Are these street illegal to drive in the of Illinois? 1 answer
      In this video, were the cats still on? Thinking about removing mine once done purchasing this, thanks! 1 answer
      Will my car still pass the New York State Emissions Inspection after installing this exhaust? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Muffler Assemblies
      • (2) Exhaust Hangers

      Tech Specs

      Axle-Back Exhaust Specifications
      Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
      Piping Size: 2.5" Tip Size: 3.5"
      Muffler Type: None Fitment: 2005-2009 GT, Bullitt and Shelby GT500 Mustangs

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09
      • GT500 - 07, 08, 09

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