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Roush Axle-Back Exhaust (11-14 V6)

Item 69060
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      Review & Installation Video

      The Roush axle-back for the S197 V6 will certainly be for the owners out there who want to be heard, as this top-rated system will also be top-rated in the volume category as well. Now, you can look forward to a mix of both 409 and 304-grade stainless steel for right around $500 here for the axle-back, and the simple bolt-on installation will get an easy one out of three wrenches on the difficulty meter. But we will have a little bit more on that later on. So the Roush axle-back that we have in this video, much like it's 5.0 counterpart, will be one of the most popular axle-backs for the 3.7, and by a pretty wide margin. In fact, guys, you're looking at over 100-plus five-star reviews for this axle-back here. A big reason for its popularity is, of course, the loud and aggressive tone, but also the relatively affordable price tag when compared to some of your other options in the category. But let's not waste any more time. Let's dive head first into that unique Roush tone that you guys all heard with our sound clips at the very top of this video. What can I say? If you want loud, the Roush here is certainly not going to disappoint. Going to my highly official and highly scientific Wake the Neighbors scale, I have the Roush coming in hot at a strong four out of five on that one to five, or one to Wake the Neighbors scale. Keep in mind, this is still with those factory manifolds still in place. Eliminate those with some aftermarket headers, get rid of the cats, and you are going to effectively peg that Wake the Neighbors scale. Now, I did hear this thing a little bit inside the car while cruising, but I wouldn't categorize it as drone. It shouldn't be anything that will deter possible buyers out there from slapping this onto their V6. But one thing that really does stand out to me about the Roush axle-back that we have here is kind of how it changes or almost transforms the sound of that 3.7 that a lot of us are very familiar with. Now, in my opinion, this thing gives that tone a little bit more of a higher-pitch characteristic, and it's something that I don't really hear with a lot of the other aftermarket systems out there. It is also something that a lot of our customers bring up in the Customer Review section. So check that out. Again, 100-plus customer reviews with the Roush axle-back, and it's just a great way to get a better feel for what you can expect when bolting this thing up to your 3.7. So how does a Roush system achieve that very aggressive, very unique tone? Well, just like the very popular 5L system out there, the star of the Roush axle-back for the V6 cars will be the hollow-chambered mufflers that Roush does incorporate here. Again, it will allow for all that volume, but without any internal packing. So you don't have to worry about the sound of this thing kind of changing on you over the years. But talking about the construction a little bit more here, guys, I did mention earlier, you're getting a mix of 409-grade and 304-grade stainless with the Roush axle-back, and that is the case here. A majority of the system will be the 409-grade stainless steel, including your tubing, the hollow-chambered mufflers we just talked about. But the tips themselves, they're actually going to be made from 304-grade stainless, which is really what you like to see. Right? Because that's what you're going to be seeing the most of, and the 304-grade is definitely better at reducing corrosion compared to the 409-grade stainless steel. Now, the tips are actually finished off in Roush's unique chrome flashing process, which just essentially is going to make for a much more durable finish over the years. At the end of the day, listen, guys. It's Roush. Right? They know what they're doing. They've built some solid stuff over the years, and their products are always very well-made and fit like a glove, which does lead me into the installation here. Again, guys, very simple stuff, one out of three wrenches on the difficulty meter for the S197 axle-backs, maybe 30 minutes to an hour of your time, depending on your setup and how fast you work. As far as your tool list, well, a basic socket set really is going to be the majority of your tools here. I always like to recommend a little spray lubricant as well, to help you with some rusty bolts and those rubber exhaust hangers. Then, of course, just give yourself a little bit more room to work underneath the rear of the car with a jack and jack stands, lift, or race ramps if you have them. Getting started, you need to remove those factory cans first. So go ahead and grab your socket set, remove the clamp closest to the muffler, and then a few bolts on the exhaust hangers connecting the hanger to the actual chassis. At this point, you can drop the factory mufflers down from the car. Transfer those factory hangers over to the new Roush axle-back exhaust system, and then get ready to lift it into place. Now, me, personally, I always like putting one end on the rubber hanger first, before tightening up the clamp closest to the muffler here, just to kind of take some weight off of your shoulders. So go ahead and do that, and loosely tighten that clamp, guys. Don't overtighten it yet, because you will need to make some small tweaks once you get everything bolted down. With that said, go ahead and bolt down the rest of your exhaust hanger, bolt on that tip, and then kind of get it situated right where you want it, in the opening in that rear bumper. Once you have everything in place, go ahead and have a buddy kind of hold that tip into place, hammer home that clamp nearest the muffler, and your installation is complete. So if you want a very loud and very unique tone for your 3.7-powered Mustang all for right around $500, definitely check out the Roush axle-back, right here at

      Product Information

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


      • Aggressive Exhaust Sound
      • Unique Open-Chambered Muffler Design
      • 409 Stainless Steel Tubing
      • 304 Stainless Steel Tips w/ Chrome Flashing
      • Fits 2011-2014 V6 Mustangs


      Aggressive Muscle Car Sound. Let everyone know your 2011-2014 V6 has arrived with the aggressive sound of this high performance Roush exhaust. This innovative new Roush exhaust system features a hollow chamber muffler that results in increased air flow and a unique sound, with no in-cabin "boom" normally found with performance exhaust at cruising speeds.

      Quality Roush Construction. Constructed from 409 stainless steel for a durable long life, the Roush axle-back exhaust system features two unique chambered mufflers with 304 stainless steel tips. The tips are finished with a new chrome flashing process that is resistant to discoloration due to exhaust heat.

      Application. This Roush Performance Axle-Back exhaust system will fit the 2011-2013+ V6 Mustangs with the stock V6 rear valance or the Roush Rear Valance.

      Fitment: 2011 2012 2013 2014 Details

      MPN# 421145

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 100+ customers

      Installation Time: Afternoon

      Installation Cost: 0-$100

      • March 28, 2020

        5 2011 V6 - GlennW Installation Time: Less than 1 Hour

        Great quality, perfect fit- cool sound!

        These really change the exhaust on the 3.7 - has a nice clean burble to it now- deep, rumbly and crisp. Install is very easy - one pointer that I didn't see in the AM install video - make sure you loosen the 4 (2 on each pipe) 15mm bolts right at the H pipe. Really easy, they point down and only takes a minute. That makes the job truly 15 minutes per side once the pipe can easily slide out of the way for you: otherwise it's a wrestling match to clear the axle and hangers. Sound is so nice now ! I also bought some BBK headers - they should pump up the sound even more I hope. Installing them tomorrow. Great shopping experience - well packed and really happy- thanks AM !

        Helpful (0)
      • March 27, 2020

        5 2013 V6 - Garibay99 Installation Time: Less than 1 Hour

        No regret on buying I promise

        Every since I’ve bought this for my mustang, haven’t turn the music on my car. My mustang been popping like crazy too. This is one of the best purchase for a mustang

        Helpful (0)
      • March 17, 2020

        5 2013 V6 - JTC408 Installation Time: Shop Install Installation Cost: 0-$100

        Mustang Exhaust

        Greta fit, looks awesome. Adds just enough rumble to the sound of the exhaust without any low cabin noise. Love the Roush chrome tips. Adds some style to my V6. Very happy with my purchase.

        Helpful (0)
      • March 06, 2020

        5 2014 V6 - BUCHMADA47 Installation Time: Weekend


        First off, I’d like to say that I went into this knowing absolutely nothing about exhaust or how to install them so everything I say here is from someone with zero experience in this stuff so if thats you listen up. I’ll start with the good so you know that it far outweighed the bad. The sound is so nice. Loud when you push on it and quiet when cruise but not too quiet. They also look amazing compared to the stock muffler like 10x better. Ok now the bad, EVERYONE SAYING THAT IT TOOK THEM 2 HOURS IS EITHER A GOD OR THEYRE JUST STRAIGHT UP LYING! When I say it’s took longer than 2 hours I’m talkin like 8 to 9 hours! To be fair I stressed a little doing some stuff during and procrastinated a bit so it’s fair to knock off an hour or two for that but when I say it was way harder I mean it was literally impossible to do this without a saw. When I started this I enlisted my girlfriend To help so I wasn’t alone during this. The stock muffler it’s next near impossible to remove. After you finally find a way to remove the clamps you’re onto possibly the agonizing experience of my life and that is the hangers. DEAR GOD DO THEY SUCK! it took me maybe 2 hours to jack up the car and unbolt the clamps but those hangers I was sitting there trying to get off for what felt like an eternity. Just do yourself a favor and get someone to install them for you especially after you hear that sound and see how much you get for the money. All in all I’d rate my experience a 10/10 would try again. Thanks for coming to my ted talk!

        Helpful (1)
      • February 17, 2020

        5 2014 V6 - AS Installation Time: Afternoon

        Big improvement over stock

        It took about 2-3 hours to install because it was my first time actually doing any kind of mods to any vehicle but it came out looking and SOUNDING reaaally good.

        Helpful (0)
      • February 16, 2020

        5 2014 V6 - Kylev19 Installation Time: Afternoon


        The product is great, adds plenty of loudness to your stang without having much drone. Sometimes I don't even realize its there when I take the foot off the gas. Great investment for your stang.

        Helpful (0)
      • February 08, 2020

        5 2013 V6 - reid Installation Time: Afternoon


        i thought it was going to be loud, but not this loud, even without a full exhuast upgrade they still sound amazing!! old pipes were rusted so it took a little longer for the install

        Helpful (1)
      • January 24, 2020

        5 2011 V6 - Dyychchxgctcifu Installation Time: Afternoon


        Great exhaust system, super loud. You will have some trouble if your bolts are rusted but nothing extreme. Highly recommend

        Helpful (0)
      • January 12, 2020

        5 2014 V6 - Itsmattburr4563 Installation Time: Afternoon

        Roush axle back

        Well worth it. Have had many compliments on how good it sounds. There is a little bit of a raspy tone around 3500 rpm but not a big deal. This exhaust is very true to the mustang sound and I highly recommend it

        Helpful (1)
      • December 26, 2019

        5 2013 V6 - LILEAT Installation Time: Afternoon

        Roush Axle-Back is awesome!

        The exhaust was very easy to put on with the right tools. It feels like I’m driving a whole different car my vote is a 10/10

        Helpful (0)

      Questions & Answers (53 answers)

      5 Top Rated Questions

      Does this exhaust require a tune? Would it be more beneficial to update your tune specifically with these axle backs? Thanks

      • Axle-back exhausts do not require a tune. You can simply bolt them on and enjoy!

      Helpful (7) Show 2 more answers

      Will I need a tune if I have a roush cold air intake and these exhausts?

      • Hey Dalton, Installing an axle back does not require a tune because it is a change in sound and not necessarily performance.

      Helpful (5)

      10-12 Roush Rear Valance I drive a 2013, do I need the 10-12 Roush Rear Valance?

      • This exhaust will fit with the stock factory V6 rear valance on the 2010-2013 V6 Mustangs. Unfortunately, the Roush Rear Valance won't fit properly on the 2013 however.

      Helpful (4) Show 2 more answers

      Will this fit on a 2016 v6 mustang?

      • No, this axle-back will only work with 11-14 V6s. You would need this option for a 15-17 V6:

      Helpful (2)

      will this produce any drone to where you can not hear radio?

      • The Roush exhaust will generally produce very minimal drone.

      Helpful (1)
      10 More Questions
      Hello, when bolting the clamp to connect the pipes together do you put the clamp in the little indentation on the exhaust or halfway on the exhaust and the mid pipe? 0 answer
      I have a 2008 V6 mustang. If I have the dual exhaust conversion will these fit? 1 answer
      how do these axle backs sound with a bbk catted x pipe stock headers? I don’t want a raspy sound...will upgrading to shorty headers resolve the raspiness if so? 0 answer
      Hello, I purchased these and had them installed. I have a 13 Mustang Convertible and they are quite loud on the interior of the car. While I love the exterior sound, Is there anything that you sell that can reduce the cabin noise? Thanks Jim 1 answer
      Does this v6 Roush axle back use the same mufflers as the GT Roush axle back? 1 answer
      Is it the same as the one with black tips 1 answer
      Can you weld these on to the car? 1 answer
      Can you have these welded on? 1 answer
      How does this sound in a convertible? 1 answer
      Is this exhaust legal in California ,2019 laws 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Muffler assemblies
      • (4) Clamps

      Tech Specs

      Axle-Back Exhaust Specifications
      Piping Material: 409 Stainless Steel Tip Material : 304 Stainless Steel with Chrome Flashing
      Piping Size: 2 1/2" Tip Size: 4
      Muffler Type: Chambered Fitment: 2011-2014+ V6 Mustangs

      Will It Fit My Mustang

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