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Roush Square Tip Axle-Back Exhaust w/ Rear Valance (11-12 V6)

AmericanMuscle no longer carries the Roush Square Tip Axle-Back Exhaust w/ Rear Valance (11-12 V6). Please check out 2010-2014 Mustang Axle-Back Exhaust for an updated selection.
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Features & Details

  • Roush Square Tip Axle-Back Exhaust with Rear Valance
  • Aggressive Roush Styling And Sound
  • Unique Open-Chambered Muffler Design
  • 409 Stainless Steel Tubing
  • 304 Stainless Steel Square Tips with Chrome Flashing
  • Fits 2011-2012 V6 Mustangs
Aggressive Styling and Sound. Now you can add the same exact aggressive styling and sound of a special edition Roush Mustang to your very own Pony with this convenient all-in-one package from Roush. This Roush kit includes their Square Tipped Axle-Back Exhaust System and their Rear Lower Valance to transform both the appearance and tone of your 2011-2012 V6 Mustang.

Muscle Car Sound. Let everyone know your V6 Pony has arrived with the aggressive sound of this high performance Roush axle-back 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.

Roush Rear Valance. Designed for aggressive race inspired styling this is the same valance that was found on 2010-2012 special edition Roush Mustangs. Made in the USA from OEM quality high pressure injection molded high-strength thermal plastic olefin (TPO) for it's long lasting durability, this Roush Rear lower Valance features a satin grained texture for an OEM appearance and to increase longevity against rock impacts from daily driving.

Application. This Roush Axle-Back Exhaust Kit with included Rear Lower Valance is specifically designed for use on all 2011 to 2012 V6 Mustangs including coupe and convertible.

Fitment: 2011 2012 Details

MPN# 421154

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Lower Rear Valance
  • (2) Muffler assemblies
  • (2) Square Tips
  • (4) Clamps
Installation Info
Tech Specs
Will it fit my Mustang?

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Questions & Answers (2)

2 Top Rated Questions

Is there any welding required? How is the exhaust connected?

  • The Roush Square Tip Axle-Back Exhaust w/ Rear Valance will not require welding and will be a bolt-on application.

Helpful (0)

Could this be put on a 2010 ?

  • The Roush Square Tip Axle-Back Exhaust w/ Rear Valance will only fit 11-12V6s

Helpful (0)
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Customer Reviews (9) Write a Review

Overall Rating 5

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4.666667 4.7
  • Exhaust Note 4.777778 4.8
  • Fit & Finish 5 5
  • Bang For Your Buck 5 5

  • 5/5

    Installation Time: Afternoon

    April 25, 2018

    Great exhaust

    Great sounding, hardly believe it’s a v6!! Out did my expectations and now I feel like I’m vin diesel in the fast and furious!!


    Year: 2012 Submodel: V6

    Helpful (10)

  • 5/5

    Installation Time: Afternoon

    April 17, 2018


    Every time I turn this car on I set off my neighbors car alarm, it gives the car such a nice deep rumble ( I also have a CAI ) it transformed it into a new car. Often people will ask me if it’s a GT and when I drive big F-150s and such always want to race but never 350zs and other mustangs haha


    Year: 2011 Submodel: V6

    Helpful (9)

  • 5/5

    Installation Time: Less than 1 Hour

    February 15, 2018

    Verry Good And Loud

    Installed the exhaust within a hour and keep in mind i've never done this on any car but it was easy and straight forward. The sound is very aggressive for a V6 and surprised me and my brother once we started it up. The valence just adds a great look to the rear end. Would recommend 100


    Year: 2011 Submodel: V6

    Helpful (10)

  • 5/5

    Installation Time: Afternoon

    October 14, 2017

    It’s like having a new Carr!

    I bought this for my father in law. He absolutely loves it. It doesn’t quite sound like one of the big boy mustangs, but it’s close. He gets lots of looks from mustang guys that know he shouldn’t have square tips protruding from the Bach of his car. Really makes them hesitant to engage in any stoplight shenanigans. Best gift ever.


    Year: 2011 Submodel: V6

    Helpful (10)

  • 5/5

    October 02, 2017


    Changes the look in a very subtle but noticeable way with valence. Exhaust is loud and with my shorty headers,cai, and tb, makes the v6 loud and I mean LOUD. Go check out my picture I posted


    Year: 2011 Submodel: V6

    Helpful (11)

  • 5/5

    December 14, 2016

    Easy to install. Great sound!!

    I ordered it with the lower valance and my v6 looks way cooler than before. Very easy to install. It reduces the weight of the car because the stock exhaust is very heavy. I really like the new sound of my car.


    Year: 2011 Submodel: V6

    Helpful (12)

  • 5/5

    Installation Time: Less than 1 Hour

    December 04, 2016

    Looks and Sounds Great

    My son and I installed the Axle backs and Valance in about an hour. Looks great on the car and sounds even better. I also have an 04 GT and this sounds better than the exhaust on the GT. Love the gurgle and popping when you downshift or let off the gas when going through the gears... Once in 6th the sound has that perfect purr while cruising. You can't go wrong with these exhaust if you want a car that is loud and turns heads as you go down the street.


    Year: 2012 Submodel: V6

    Helpful (13)

  • 5/5

    Installation Time: Afternoon

    December 18, 2015

    Beauty and the Beast.

    The instructions were clear and simple to follow. The axle back took about 15 to 30 minutes to install. The valence fit perfectly, no cutting or drilling of the bumper cover on the 2012 V6. It did take a little time to adjust the square pipes to fit exactly in the valence, but it is worth the time to make the simple adjustment. Some one guiding you at this point would eliminate getting up and down to check the look. The change was a real attention getter. The sound was incredible. If you DON'T want to be noticed by everyone, skip this mod. WOW factor plus.


    Year: 2012 Submodel: V6 Carbondale,Illinois

    Helpful (12)

  • 5/5

    Installation Time: Afternoon

    December 10, 2015

    Sounds Great!

    Love this exhaust, it sounds great. Easy to install.


    Year: 2012 Submodel: V6 Rocky Mount, NC

    Helpful (9)

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