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Ford Performance FR500S Axle-Back Exhaust (05-09 GT, GT500)

Item 24084
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      Product Information

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


      • Aggressive Throaty Exhaust Sound
      • Polished 304 Stainless Steel Tips
      • Durable Stainless Steel Construction
      • Fits 05-09 GT and 07-09 Shelby GT500 Mustangs


      Aggressive exhaust note. The Ford Racing FR500S Axle-Back exhaust system will improve your 2005-2009 GT or GT500 Mustangs exhaust flow for an increase in power and a throatier exhaust note, than that of a stock GT.

      Quality Construction. Constructed from durable aluminized 409 stainless steel for it's corrosion resistant properties the FR500S axle back features 3.5" diameter polished 304 stainless steel tips for muscle car looks.

      Application. This Ford Racing Axle-Back exhaust system will fit the 2005-2009 GT and the 2007-2009 Shelby GT500 Mustangs for both great looks and great sound.

      Fitment: 2005 2006 2007 2008 2009 Details

      MPN# M-5230-S

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 100+ customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • September 15, 2019

        5 2009 GT500 - centaur Installation Time: Afternoon

        axle back exhaust installed

        bought shelby with stock mufflers removed. A little loud. Installed long tube headers with h pipes and hear a mile away loud. I like loud but cops could hear me comin from the next county . installed the axleback mufflers in a coiple of hours and its way better, still loud when i step on it , but much more manageable . I like .

        Helpful (0)
      • September 13, 2019

        5 2008 Bullitt - PeteP Installation Time: Afternoon

        Should have been the stock Bullitt exhaust

        I have an 08 Bullitt that is bone stock, with the exception of this new exhaust. Installed this exhaust today and it is awesome. It really should have been the stock exhaust for the Bullitts. Easy install in a couple of hours.

        Helpful (3)
      • June 22, 2019

        5 2008 GT500 - MarkL

        Great sound no drone, really

        Finally sounds like there's some hp under the hood. Startup growls, add supercharger better, cruise, quiet, no drone can hear the radio clearly and the wife, but pretend I can't. Took me 2 hours in the garage to install, only 1 bolt on the drivers side was hard due to previous Flowmasters restricting access.

        Helpful (2)
      • June 19, 2019

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

        Ford performance exhaust for a 2009 GT500

        Thanks American Muscle. The axle back ford performance great sound no drone at any rpm mild under normal driving and when you get on it loud but a quality loud. I could not be more happy. Thanks American Muscle

        Helpful (0)
      • April 16, 2019

        5 2005 GT - PMS Installation Time: Afternoon

        Ford engineers get it right

        If you look down inside these are actually straight thru resonators. So... tuned for NO DRONE at all (thank you Ford racing!) yet rattle the windows when mashed! Dad is going to hear you when sneaking out of the girlfriends house, but the neighbors will be happy enough. On a stock 2005 w cats. Oh, and they fit like a glove, unlike the other ones I had.

        Helpful (2)
      • April 07, 2019

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


        I had the Pypes Pipe Bomb before these and they had way too much drone to them. I wanted a nice deep sound without the drone so I took the chance on these. They are definitely worth it. Real nice sound on start up and when you are on the gas. When you have the cruise set, they tone right down very close to stock. That is what I was looking for, a nice growl when on the gas and no drone when you are at a steady speed. Nice exhaust.

        Helpful (4)
      • April 03, 2019

        5 2009 GT500 - WilliamC Installation Time: Afternoon

        Sounds like it should

        My experience was great. All of the reviews and you tube sound clips made it easy. Thanks

        Helpful (1)
      • April 02, 2019

        5 2008 GT500 - Tleamon74 Installation Time: Less than 1 Hour

        2008 GT 500 Fr500 axel-back

        Ordered the FR500 exhaust for my 2008 Shelby GT 500 got them in on time opened the package and the exhaust was in great shape,put the car on Jack stands in the driveway and removed my old stock exhaust,installed the ne FR500's in about 45 min with no problems at all fit and finish was perfect! I took several weeks reviewing and listening to sound clips of the mufflers and the tone was spot on they sound great BUT not as loud as I wanted,I am not disappointed at all and would not chang my choice,I will be installing a Off Road X pipe to get the volume I'm looking for and if that doesn't please my ear I will add long tube headers lol! If you are looking for a mild GREAT sounding axle-back this is your best choice by far!

        Helpful (1)
      • March 31, 2019

        4 2009 GT500 - Douglas Installation Time: Less than 1 Hour

        Loud but no drone

        I have an off-road x pipe so they are a little loud but no drone !

        Helpful (0)
      • March 23, 2019

        5 2006 GT - MustangGT88 Installation Time: Afternoon

        You Pay For Quality! , 5/5

        I recommend you install these yourself due to the fact that it will make you feel more connect with your Pony. This took me and my brother about 1.5 hours, we i dont work on cars on the daily. The Axle back fit like a glove. Now onto the fun part... i have a 2006 Mustang GT (AUTO) 80k miles and i replaced the original owners Magnaflow. Magnaflow cant even come close to the FR500s. This car grumbles in all the right places with ZERO drone, i dont even know how its possible to get as loud without drone? This Axle back is not cheap, but with the Ford Stamp onto my Mustang GT i will never buy another exhaust. I will say it is louder when you first install and do a few Pull so it drops from 5 / 5 to 4/5 on the loudness after about an hour of driving. The popping sound will subside fairly quickly, but all u get is pure mean Grumble as a GT should sound end of story.

        Helpful (3)

      Questions & Answers (13 answers)

      5 Top Rated Questions

      How much louder are these than stock? Looking for a more aggressive sound than stock but do not want something obnoxious.

      • The Ford Performance FR500 Exhaust has a very nice and throaty sound that easily beats the original factory exhaust without having to settle for an obnoxious option. This will have a nice muscle car sound when accelerating and a nice quite sound when driving at highway speeds.

      Helpful (5)

      Is this axle-back exhaust louder than a corsa xtreme?

      • The Ford Performance FR500S Axle-Back Exhaust is definitely one of the loudest exhausts offered for the 05-09 GT models. When compared to the Corsa Xtremes, I would honestly say they are actually very even in terms of how loud they are. Both offer a very aggressive sound.

      Helpful (3)

      Can these be modified to fit a 2011 GT?

      • This axle-back exhaust is desinged to fit the 2005-2009 Mustang GT models only and unfortunately will not work with the 2010 and up models.

      Helpful (1)

      This is a good price for this exhaust. Can you confirm that this item is an actual Ford factory part which would normally be available from a Ford dealer or is it an aftermarket reproduction?

      • This Ford Performance FR500S Axle-Back Exhaust (05-09 GT, GT500) is a genuine Ford Performance part. The MPN M-5230-S listed below item number stands for Manufacturer's Part Number and can be cross referenced to Ford Performance's website as well.

      Helpful (1)

      I have a 2006 GT it is automatic. Would there still be an advantage, "thrill" of adding these? I see people talking about being in 5th gear, etc. Will I see that benefit with automatic transmission? Thanks

      • The Ford Performance FR500S Axle-Back Exhaust would still provide an aggressive tone and louder exhaust note than your stock axle-back exhaust.

      Helpful (1)
      Post Your Question
      8 More Questions
      Does this Axleback system and the Borla ATAK Axleback have a similar volume or is one significantly louder than the other? 1 answer
      do these have the ford logo on them and are allowed in all 50 states 1 answer
      how much hp Do these offer more horsepower then the stock ford racing exhaust on 2008 Bullitt? 3 answers
      Are the pipe clamps included in this? 1 answer
      I need to replace the driver's side muffler on my 2008 Shelby GT. Do i need to order both sides, or do you sell them individually? 1 answer
      Does this Axelback had embossed the Ford Racing Logo? Is there a E Number for check the legality in Europe 1 answer
      can I install this exhaust on 2010 gt? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Muffler assemblies

      Tech Specs

      Axle-Back Exhaust Specifications
      Piping Material: 409 Stainless Steel Tip Material : Polished 304 Stainless Steel
      Piping Size: 2.5" Tip Size: 3.5"
      Muffler Type: Straight-through Fitment: 05-09 GT and 07-09 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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