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MBRP Pro Series Muffler Delete Axle-Back Exhaust (15-17 GT)

Item 397521
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      Review & Installation Video

      This axle-back is going to be a good option for you if you're looking for the most budget-friendly way to make the biggest change in your exhaust note with an axle-back. This is currently the most affordable axle-back on the site and it's a muffler delete setup, which means that this is going to give you the biggest change possible from an axle-back. The install for this is easy. It's a two out of three wrenches on the difficulty meter, but only because you do need to cut in order to install an axle-back on an S550, and you're looking at about two hours' time. This being a muffler delete system means exactly that. You're going to be completely eliminating your mufflers. So what you're going to get with this system is the pipes you see here with MBRP tips. That means that after the resonator mid-pipe, there'll be no more exhaust filtration. It's going to make for a very big change in every aspect of the exhaust sound. It's going to be much louder and deeper-sounding than the stock exhaust. There's a little bit of drone inside the cabin at cruising speeds. But honestly, I'm not surprised by that at all. The nature of a muffler delete lends itself to drone and it's not a terrible drone, but it is noticeable. With that being said, I'm going to call this one a five out of five on the loudness scale, one being a quiet upgrade, and five being a very loud upgrade. For an axle-back, you can't get much louder than this. I will say, though, that you should keep in mind that you get this volume and this sound with the stock resonator still in place. If you ever change your mid-pipe down the road, or even your headers, this system is going to get even louder and it has a potential to be very loud depending on what you do with the rest of your exhaust system. Just keep in mind the smaller diameter inlets that this axle-back has, being that it's made for the stock exhaust. The diameter of the axle-back is two and a half inches, so that it can bolt up to the factory exhaust without any issues. The tips are four-inch, polished stainless steel, and as far as materials for the rest of the axle-back, this is mandrel-bent, aluminized steel tubing. The fact that this is aluminized does help to keep the price so affordable. But you do have the downside of aluminized steel not holding up as well over time against harsher elements. This would be something that you should consider if you are shopping for a daily driver that sees all different types of road conditions. But if you're shopping for a car that only comes out during nice weather, this shouldn't completely scare you away from this product. When it comes to price, you can expect to pay very close to the $300 mark, which makes this currently the most affordable axle-back option for the S550. If you're looking for something close to this sound-wise, but you want stainless steel materials, SR Performance makes a muffler delete system for about $30 more that's stainless steel. You're going to be looking at the typical cut-and-clamp design with the install for this axle-back, since you need to cut all S550 axle-backs. I'm going to call this a two out of three wrenches on the scale, but just because of the cutting that's involved. It's nothing difficult, but I just recommend some eye protection and a fresh blade to make the cutting easier. Overall, you're looking at about two hours to get this all done. A lift would certainly make things easier for you here, but the job can be done on jack stands as well, if you don't have access to one. Cutting the factory axle-back isn't hard. Just be sure to measure twice, and plan a mark where you'll be cutting, so you don't make a mistake. Once you have the factory axle-back cut, you can drop the factory mufflers with the hangers. The new axle-back will come with new clamps for you. So you don't have to worry about transferring anything over, other than the factory hangers. Once you get the hangers over to the new axle-back, you're ready to install. You just flip the axle-back into place and bolt up the hangers. You can tighten the clamps on the axle-back. But it'd probably be easiest to leave the clamps on the tips loose until you have it all lined up, and then tighten them down. That's going to be it for the MBRP Pro Series muffler delete axle-back exhaust. But as always, you can check it out more online right here at

      Product Information

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


      • Loud Aggressive Exhaust Note
      • Improves Exhaust Flow
      • Muffler Delete Design
      • 2.5" Mandrel-Bent Aluminized Steel Tubing
      • 4" Polished Stainless Steel Tips
      • Lifetime Warranty
      • Cut & Clamp Installation
      • Fits All 2015-2017 GT Mustangs


      Listen to Your Coyote Growl. Drastically change the exhaust note of your Coyote powered GT Mustang by installing MBRP's Pro-Series performance Axle-Back Exhaust. This MBRP Axle-Back deletes the mufflers entirely from your Mustang's exhaust to produce a loud throaty growl that will be sure to wake the neighbors.

      Power And Performance. The MBRP Pro-Series Axle-Back Exhaust not only improves the sound of your Coyote powered Mustang, but it will also improve its performance. With the help of its free flowing muffler delete design, this Axle-Back will significantly improve exhaust flow for an increase in rear wheel horsepower and torque.

      Durable Aluminized Steel Construction. Constructed from 2.5" diameter aluminized steel tubing for strength and corrosion resistance, this MBRP Cat-Back Exhaust System features two straight pipes that feature 4" slant cut exhaust tips. MBRP then completes the tips in a bright mirror polished finish for maximum visual appeal. As an added bonus, the tips are etched with the MBRP logo for true custom styling.

      Cut & Clamp Installation. Installation of this MBRP Axle-Back Exhaust System will require cutting and removing the factory muffler assemblies and clamping the new muffler assemblies in place. Clamps and installation instructions are provided.

      Application. This MBRP Pro Series Muffler Delete Axle-Back Exhaust is designed to fit all 2015-2017 GT Mustangs.

      Fitment: 2015 2016 2017 Details

      MPN# S7276304

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (38)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 38 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • February 20, 2020

        5 2016 GT - Razorbeak2001 Installation Time: Afternoon

        Mbrp pro series mufflers

        Made a big difference in sound. Very happy with my purchase.

        Helpful (0)
      • December 29, 2019

        5 2016 GT - MarkC Installation Time: Less than 1 Hour

        Radical sound!

        Awesome sound, very satisfied with the sound and ease of installation.

        Helpful (0)
      • December 06, 2019

        5 2017 GT - abualrub

        overall great

        its really good quality really loud and I have it paired with X pipe. but it has a drone between 1.5-2.1 RPM. if you can deal with that drone I highly recommend buying it

        Helpful (0)
      • September 27, 2019

        5 2017 GT - PapaBless Installation Time: Less than 1 Hour

        Trumpet with a rumble

        The Pro series axle-back was a great improvement to the sound of the stock exhaust. Of note: I used it with the stock H-pipe. It has an amazing sound throughout the rev range, starting at a deep rumble that raises to the classic mean V8 muscle car sound we've all grown to love. Seriously, the exhaust note get's a lot of love from other gearheads, and a lot of hate from boring people. The Pro series exhaust provides a great cold start and idle that will let your neighbors know you're around (if they're awake) but won't necessarily wake them up in the morning. Installing the mufflers probably took about 25lbs off the car in place of the heavy stock ones. All in all, if you want a great sounding car at a very good price point, you should get this kit.

        Helpful (0)
      • August 28, 2019

        5 2015 GT - whiteknight84 Installation Time: Afternoon

        Amazing sound..easy install

        great product everything fit up good. Car sounds amazing and the included tips look great

        Helpful (0)
      • August 13, 2019

        5 2017 GT - JakeeTaylorr21 Installation Time: Shop Install Installation Cost: $100-$250

        GREAT TONE !!

        Bought a new gt 5.0 and stock was too quiet . I had this installed (welded) for $105 and gave it a louder , deeper ,but still very daily driveable tone . I later paired it with the mbrp x pipe and boy she really screams now . It cost me another $130 for the x pipe install. All in all it sounds great ! If you’re trying to wake the entire neighborhood, pair this with the mbrp X pipe . If you want something that sounds good when you get on it , just stick with the axle back .

        Helpful (2)
      • August 11, 2019

        5 2017 GT - Trapper

        Great sound

        Easy to install. Good sound. Not annoying to me or my neighbors.

        Helpful (0)
      • June 16, 2019

        5 2015 GT - Doza Installation Time: Afternoon

        Perfect sound

        Perfect sound. Best part is the cold starts. Very little drone.

        Helpful (0)
      • February 02, 2019

        5 2016 GT - JohnC Installation Time: Afternoon

        Sounds Great

        Happy with The Sound loud enough to turn heads but not annoying

        Helpful (0)
      • January 31, 2019

        5 2016 GT - MauriceM Installation Time: Less than 1 Hour

        Simple cheap upgrade with great sound

        a little louder than expected but my mustang actually sounds like a gt supposed to now. Everyone can def hear me coming. Cold start sounds like a mad throaty beast that wife just got punched in the face lol!

        Helpful (0)

      Questions & Answers (8 answers)

      5 Top Rated Questions

      do the tips on this come off cause i have a diffuser on my car where i need quad tip ?

      • The exhaust tips on the MBRP Pro Series Muffler Delete Axle-Back Exhaust are bolt-on and fully removable.

      Helpful (1)

      How far back from the muffler should I cut the piping to ensure that the pipes align and end where they were intended?

      • You would just need to do some measuring and some math upon receiving this exhaust, relative to where and how you would like to tips to sit when all is said and done.

      Helpful (0)

      Why would these not fit a V6?? Why aren't there any muffler delete setups for a V6?

      • This will not fit V6 models due to differing fitment when compared to GT models. We have a few muffler delete options for 15-17 V6 models here -

      Helpful (0)

      Would I still be able to pass a emission test if I remove the mufflers and add these to my gt?

      • Yes, emissions related tests have to do with your catalytic converters, since your mufflers are put downstream of these you should be good to go.

      Helpful (0)

      Is there any easy way to custom fit the MBRP Pro Series Muffler Delete Axle-Back Exhaust (15-17 GT) on a 6 cylinder 2016 mustang? I really love this product and I wish it woulds fit on my 2016 mustang v6

      • At this time we do not have any way to fit the MBRP Pro Series Muffler Delete Axle-Back Exhaust to a V6.

      Helpful (0)
      Post Your Question
      3 More Questions
      The MBRP website lists this part number as T304 stainless but your product description lists it as aluminized. Is it T304SS or AS? 1 answer
      I have the mbrp cat back racing exhaust installed on my 2016 gt. Will this axle back for that setup so I can eliminate the mufflers but keep my mbrp h-pipe? 1 answer
      I'd like to get these for my 2016 GT convertible (automatic 3.55 gears), but I'm concerned about drone. Is there any drone? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Driver Side Muffler Assembly
      • (1) Passenger Side Muffler Assembly
      • (2) Clamps
      • Instructions

      Tech Specs

      Will It Fit My Mustang

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