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Magnaflow Competition Axle-Back Exhaust w/ Black Tips (15-17 GT)

Market Price $914.36 You Save 12% ($105.19)
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  • Item 389692

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    Features, Video & Details

    • Aggressive Muscle Car Sound
    • Stainless Steel Construction
    • 3" Mandrel-Bent Tubing
    • 4.5" Black Finished Stainless Steel Tips
    • Fits 2015-2017 GT Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys, Stephanie with, and this is my review and an install of the Magnaflow Competition Axle-Back Exhaust, fitting 2015 and up GT Mustangs. We're gonna cover a few things with this exhaust in this video. Mainly we're talking about the sound of the axle-back, the materials, and the install. The install for this is easy. It's a two out of three wrenches in the difficulty meter, but only because you do need to cut in order to install an axle-back on an S550, but we'll talk about that more later. The Magnaflow Competition Axle-Back is going to be a good option for the S550 GT owners out there that are looking for a deep sound and a smooth exhaust tone. I wouldn't call this system quiet, but it's not loud either, so it's a perfect option for those of you out there that are looking for something in between. The sound that this axle-back offers is what I consider a low rumbling growl. It's not a loud and raspy system, but it does give a smooth sound. Overall, this is a deep sounding system that doesn't have a lot of raspiness and popping to it. It's got some volume to it, and keep in mind that this is just an axle-back, so just know that it can get even louder with a mid-pipe and headers. With that being said, I'm gonna give it a solid two or three out of five on the loudness scale. At the end of the day, though, no matter if you love this sound or hate it, it really all depends on what you're looking for and what you like, and luckily there are quite a few options out there.So the sound that this offers is courtesy of the full stainless steel system that's mandrel-bent. It's a two and a half inch system with four and a half inch polished stainless steel tips for out back. The axle-back is designed to be more free-flowing and reduces a little back pressure, and the mufflers are also straight through mufflers. And I always say this, but stainless steel is always a great option for the cars that see all different types of road conditions, because it offers great corrosion resistance.When we start to look at price, this axle-back is on the more expensive side of things. It's gonna cost between $750 and $800. So it's up there with the likes of Borla, but there's still the Ford Racing and Corsa offerings that are a bit more expensive. If this is out of your price range, there are a ton of exhaust options for the S550, so you can always check out some of those. You're gonna be looking at the typical cut and clamp design with the install for this axle-back since you do need to cut all S550 axle-backs. We're gonna call this a two out of three wrenches on the scale, but only 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 to mark where you'll be cutting so you don't make a mistake. The new axle-back will come with new clamps for you, so you don't have to worry about that. When you go to install your new setup, it'll probably be easiest to leave everything loose until you have it all lined up and then tighten it down.Overall, the Magnaflow Competition Axle-Back is a two and a half inch stainless steel axle-back that's a great option for those looking for a sound that's in the middle of the road when it comes to volume. It offers a smooth and deep sounding exhaust tone from straight-through mufflers, and it has four and a half inch tips for out back. You can check this axle-back out some more online for yourself, and for all things Mustang, keep it right here at

    Add Horsepower. Stop choking off your high powered 5.0L V8 Fastback with a stock exhaust system and enjoy more horsepower with a Magnaflow Competition Axle-back. By reducing back pressure and giving your GT Mustang a free-flowing exhaust, you'll see great power and torque gains.

    Aggressive Muscle Car Sound. Give your Coyote powered 2015-2017 GT the deep, aggressive rumble it deserves with a Magnaflow Competition Axle-Back. This premium quality exhaust features free-flowing, straight-through mufflers that increase power and give your GT an unmistakable muscle car sound.

    Magnaflow Quality. Constructed from durable 3" diameter mandrel bent stainless steel tubing for it's corrosion resistant properties, this Magnaflow Axle-Back features two straight-through mufflers with black powder coated 4.5" stainless tips, that exit in the stock locations for impressive muscle car looks and sound.

    Cut & Clamp Installation. The installation of this Axle-Back Exhaust requires cutting and removing the stock muffler assemblies and clamping the new muffler assemblies in place. Clamps and instructions are provided.

    Application. This Magnaflow Competition Axle-Back Exhaust with Black Tips is specifically designed to fit the 2015-2017 GT Mustang and give it the deepest, most aggressive sound possible. This Magnaflow Competition Axle-back Exhaust fits both the fastback and convertible models.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 2015 2016 2017 Details

    MPN# 19255

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (2) Muffler assemblies
    • (2) Inlet pipes
    • (2) 3" clamps
    • (2) 2.5" clamps
    Installation Info
    Tech Specs
    Axle-back Exhaust Specifications
    Piping Material: Stainless Steel Tip Material : Black Powder Coated Stainless Steel
    Piping Size: 3" Tip Size: 4.5"
    Muffler Type: Straight-through Fitment: 2015-2017 GT
    Will it fit my Mustang?

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    Questions & Answers (2)

    2 Top Rated Questions

    Is it compatible with v6 ?

    I recently installed the Borla Touring Cat-Back exhaust. It sounds good but a little too tame. Can I replace the Borla Touring mufflers with this Magnaflow Competition Axle-Back Exhaust on the Borla pipes to liven up the sound? Thank you.

    • Unfortunately the Magnaflow Competition Axle-Back Exhaust, would not be compatible with the Borla Touring exhaust.

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    Customer Reviews (8) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.428571 4.4
    • Exhaust Note 4.714286 4.7
    • Fit & Finish 5 5
    • Bang For Your Buck 4 4

    • 5/5

      March 24, 2018

      Good addition

      Very good combination with my o/r kooks headers and o/r Ford racing x-pipe.


      Year: 2015 Submodel: GT

      Helpful (5)

    • 2/5

      Installation Time: Less than 1 Hour

      November 07, 2017


      I installed this axle-back system with the MRT H-pipe after seeing a few videos describing the loud, old-school sound this setup offers, and I couldn't be more disappointed. The exhaust does have a bassy, old-school tone, but the volume is very low (not that much louder than stock). The drone inside the car is VERY noticeable. In fact, I think this exhaust is louder inside the car than it is outside. I've had it on the car for less than 1000 miles and I'm already replacing it with a cat-back system. Probably the worst upgrade purchase I've ever made and this is my fourth Mustang.


      Year: 2017 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      August 25, 2017

      Aggressive tone just like I want

      Nice exhaust tips not terribly hard to install. Can be installed with basic hand tools. Was done in a couple hours.


      Year: 2015 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      July 05, 2017

      Deep low growl

      Paired this setup with Kooks LT headers and Ford Racing X-pipe with side exits. The setup gives it a loud and obnoxious exhausts sound. Brutally loud were ever I go.


      Year: 2017 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      June 22, 2017

      Awesome exhaust

      Worth the price exactly the sound I wanted the black tips really gives a great look the sound is the deep tone and has no popping when shifting


      Year: 2017 Submodel: GT

      Helpful (6)

    • 5/5

      June 21, 2017

      2017 GT

      Very easy to install. They are very loud. I installed them with the Flowmaster resonator delete X pipe. It sounds good just louder than I expected.


      Year: 2017 Submodel: GT

      Helpful (6)

    • 5/5

      September 06, 2016

      Woke Up the Beast

      AmericanMuscle's customer service/shipping is one-of-a-kind. I had these installed by a professional aftermarket car shop and WOW! The tone is so deep and it's much louder than stock. At idle, it sounds like a 60s-70s muscle car with the choppy sound. At redline, it's unbelievable. I had a bit of drone, but it has decreased after a few hundred miles. The tips are huge and fill the cutouts perfectly. Buy this if you want stares.


      Year: 2016 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      June 29, 2016

      Love These Pipes

      I have this axle-back installed with the CJ's h-pipe. It sounds glorious. If you want old school muscle sound, this is the set up to buy. It's SOO deep, and stays nice and thick even when you get on it. No rasp, but has a nice little breakup past 5-6k just enough to give a little bite to scare the kiddies away. It is loud. It is super deep. Not for the driver that doesn't want hear their exhaust all the time. Install was super easy. You have to cut your OEM pipes, put the way this slides over it gives you a bunch of room for error, so it'd be pretty hard to mess up the cut. I had a few leaks at the clamps at first, as with any pretty much any slip fit exhaust. Sealed up the seams with permatex, and its super solid now. I had a fair bit of 2k drone, but once I got the whole system air tight hardly any drone. 2k is still louder but it has the same nice bubbly sound as idle so it's not annoying. I would HIGHLY recommend doing this setup with an H pipe. It really makes it an incredible sound that you just don't hear out of any other system out for the s550. Ending side note it looks awesome too, though i'd be running this set up if it looked like two soda cans sticking out of my bumper. It sounds that good.


      Year: 2015 Submodel: GT

      Helpful (8)

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