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Corsa Sport Axle-Back Exhaust (11-14 GT, BOSS)

Market Price $862.99 You Save 17% ($143.99)
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  • Item 100511
  • MPN# 14316

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Features & Details

  • Corsa "Sport" Axle-Back
  • High Performance Sound with No Drone
  • Straight-Through Mufflers Featuring Corsa's Patented RSC Technology
  • 304L Stainless Steel Construction
  • Mirror Polished, 4" Pro-Series Tips
  • Made in the USA
  • Fits 2011-2014 GT and 2012-2013 BOSS Mustangs
Sport Performance Sound. The Corsa Sport axleback system is acoustically styled and engineered to give your Mustang a robust high performance sound under acceleration and a nice growl at idle all without interior cabin drone.

RSC™ Technology. Corsa designs their mufflers using their own patented Reflective Sound Cancellation® Technology (RSC™) to give your Mustang an aggressive sound under acceleration and a drone-free experience while cruising.

Quality Construction. Corsa Axle-back systems are manufactured in the USA from premium grade 304 stainless steel for a long life and a perfect fit. The system features two straight-through mufflers that end with mirror polished 4" Pro-Series tips, that exit in the stock location for impressive good looks.

Application. The Corsa Sport Axle-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2011-2014 GT and 2012-2013 BOSS Mustangs.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Driver Side Muffler Assembly
  • (1) Passenger Side Muffler Assembly
  • (2) Clamps
Installation Info
Tech Specs
Axle-Back Exhaust Specifications
Piping Material: 304 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 3" Tip Size: 4"
Muffler Type: Straight-through Fitment: 2011-2014 GT, BOSS
Will it fit my Mustang?
  • GT - 11, 12, 13, 14
  • Boss 302 - 12, 13

People Who Bought This Item Also Bought

Most Helpful Reviews

5 Stars for Corsa

Quality and fitment are exactly what you would expect from a top tier product with a lifetime warranty. Installation was straight foward and requires a minimal amount of tools. Sound department: Corsa's ...

Read More
Helpful (1)


Before getting these mufflers I went through a ton of other brands, only to find drone and ugly sounds. after getting fed up with it, I went back to stock and then purchased these. SOUND: The exhaust ...

Read More
Helpful (1)

Overall Rating 4.9 out of 5 stars
Read All 15 Reviews

Customer Photos (8) Submit Your Photo

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1 Questions / 1 Answers

Ask a Question

Im Running GT500 Mufflers on my 13 GT. But they are a bit 2 quiet for me. Are the Sport louder or the same as the GT500 Muffler? Greetings from Switzerland :)


Helpful (0)
  • The Corsa Sport Mufflers are great choice! I personally like them due to their lower volume low RPMs to help reduce drone. But as soon as those RPMs start climbing these mufflers start to scream! I think these would be a great upgrade for you! Cheers from the U.S.A!


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Customer Reviews (15) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4.615385 4.6
  • Exhaust Note 4.923077 4.9
  • Fit & Finish 5 5
  • Bang For Your Buck 4.153846 4.2

  • 5/5

    Installation Time: Afternoon

    September 29, 2016

    Review from Corsa Sport Axle-Back Exhaust - Black Tips (11-14 GT, Boss)

    Best exhaust ever

    Just put on my new Corsa Sport mufflers with the black tips on my 2013 GT/CS. They sound and look great!! Installed them with a Pypes after-cat x-pipe which gives them a great sporty tone. Finish and fit was perfect. They are the perfect level of loud for my taste. Not much louder than the stock mufflers at idle but will let you know they're there when you get on the gas. Definitely would buy again. Great product and great service from American Muscle.


    Year: 2013 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 20, 2016

    Great Purchase

    These are quiet when they need to be, but loud when you want them to be. The tips look great as well, filling the rear valance up nicely.


    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    July 12, 2016

    5 Stars for Corsa

    Quality and fitment are exactly what you would expect from a top tier product with a lifetime warranty. Installation was straight foward and requires a minimal amount of tools. Sound department: Corsa's RSC tech lives up to its claims. It's perfectly quiet enough to carry a conversation or listen to the radio while at cruise with a nice undertone and won't rattle your door panels apart. Slow cruising offers enough tone and volume to turn plenty of heads. And it's ready whenever you are to poke the loud pedal and snap necks. I've experienced plenty of undesirable exhaust noises that are either too quiet or over the top, over priced or substandard in general. Overall, I am very impressed with the quality and fitment as well as the sound and I would have no issues recomending this company to a friend. Worth the cost.


    Year: 2014 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Full Day

    April 22, 2016

    louder than I'd like

    sounds awesome for sure. BUT! gets old when you're barely moving but sound like you're flying.


    Year: 2012 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 19, 2015


    Before getting these mufflers I went through a ton of other brands, only to find drone and ugly sounds. after getting fed up with it, I went back to stock and then purchased these. SOUND: The exhaust note is simply incredible. I can honestly say that my mustang has a more fine, expensive sounding exhaust note than most exotic cars. Sounds silly, but it's true. No other exhaust Ive heard comes close to the sound of Corsa. see volume later in review. while decelerating in gear, the mufflers create a kind of rolling thunder sound that's almost like bubbling or popping, but not in a bad way... in a great way. under acceleration the exhaust keeps the same deep deep tone,, and goes insane above 5Krpm. if you pair this with an intake, you'll really hear it. above 5000 it sounds as if I just hit a nitrous button, it's insane, in the best way. LOOKS: Gorgeous tips. solid stainless steel construction, perfect welds, rings like a titanium aircraft turbine when tapped. incredible quality all around. FIT: You will have to unbolt (just so they can swivel) the over-axles from the midpipe to make your life easier here. Getting the old mufflers off and these on requires some serious creativity and patience. Tips are to grease the hangars on both sets to ease uninstalling and installing, and when mounting the Corsas, seems like the forward inboard hangars should be slipped on first. be patient, it's like solving a puzzle trying to work these on or off. VOLUME: started it up, cold start, thought it was stock haha. very quiet start up and idle, barely louder than stock, but with a muuch different sound. Gorgeous tone. again, idle is quiet. Not too bubbly like Roush, but very "5.0"ish. under normal acceleration you can definitely tell they're there and you'll be smiling from ear to ear. during cruise, at ANY speed, the cabin is as absolutely as quiet as stock. zero drone. at all. even at 90mph. WOT acceleration is where you'll really realize you're not stock anymore. These are LOUD at full throttle. These mufflers can be used for any Daily, even in an apartment complex,etc. I leave my tight complex at 5am 6 days a week and no one has complained. although its night and day compared to stock, you will still never ever wish these were quieter. Exhaust videos dont really sound like the mufflers actually sound. If you're looking for something a bit louder, get Corsa Xtreme. I feel like after a year of owning these, one might wish they were a bit louder. Overall, if these were double the price, theyd STILL be worth the money. Once you ride Corsa you'll never go to any other company.


    Year: 2012 Submodel: GT Daytona Beach, FL

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    December 04, 2015

    Everything I could have asked for

    I received my Corsa Sport exhaust 4 days after I ordered it. Quick delivery from American Muscle. I had it installed at a local muffler shop. They completed the install in less than 45 min. The look of the 4" chrome pipes are badass. The sound is true Mustang great rumble when idling and awesome sound when accelerating, but not to much to be annoying. No Drone at all.


    Year: 2014 Submodel: GT Long Beach, CA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 10, 2015

    Review from Corsa Sport Axle-Back Exhaust - Black Tips (11-14 GT, Boss)

    Mustang 2014 GT CORSA Axle Back System

    I installed this exhaust system in about 2 hours. I took my time and did some cleaning of the under carriage while I was at it. Backed the car up onto a set of ramps and install was easy to do. I did move the pan hard bar down as stated in the instructions and it made the installation much easier. This CORSA system fit perfectly, sounds great, and the Black Chrome tips are different and look great. I as many listened to as many sound clips as possible and talked to different retailers about their opinion on sound quality and loudness. I also spoke with the CORSA representative several times. In the end I choose the CORSA Sport system. I wanted a high quality system with distinctive looks and a sound that is louder than stock but civilized when not fully into the throttle. The CORSA Sport delivers on all fronts. It also gives you the ability to modify the rest of the exhaust system if you want to add or change the sound such as adding headers, deleting the stock resonators or putting on an x-pipe in place of the factory H-pipe. In my option unless you actually hear the exact exhaust system you want you will never be sure of what you will get in terms on sound. In lieu of not being able to hear a system in person I think it is best to concentrate on what your desired sound level is, how you want the back end of your Mustang to look and if you are going to do any future modifications. The CORSA sport system will not disappoint, it is a great product.


    Year: 2014 Submodel: GT Warrington

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 20, 2015

    Bettter tone that factory with absolutely no drone

    If you are looking for something sounding better than factory with no drone these Corsas do the job. I had a set of Flowmasters for a year or so but the drone just old. The Corsa sound clearly announces these are not factory exhausts. At crank and idle they almost sound like you have a V-8. Put your foot into it and they sound great without waking up the neighborhood. Fit and finish is perfect. Chromed tips were angled perfectly (they are welded so you can't adjust them). Install was one hour with a 13mm socket and wrench. There are two brackets on the Mustang - I had to remove the bracket closest to the differential to get the Corsas on. Start to finish is about an hour. If you want something a lot louder than stock these are not for you. I really like the extra sound without any drone. Well done Corsa.


    Year: 2012 Submodel: V6 Nashville, TN

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    August 18, 2015

    Review from Corsa Sport Axle-Back Exhaust - Black Tips (11-14 GT, Boss)

    Black is beautiful

    Confirmed: No drone at cruise. Confirmed: Loud under hard acceleration. Had my mechanic install it, so can't speak to ease or difficulty of the install. Black tips look sharp against my ingot silver pony. Nice startup rumble. Very quiet at idle, though slightly different tone than stock. Wish it was a tad deeper note under acceleration, but it is definitely better than stock.


    Year: 2014 Submodel: GT Everett, WA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    December 24, 2014


    Just installed this exhaust today (December 24th, 2014). What a great exhaust. There is absolutely no drone at all!!!! Louder than stock but much more quiet than a Roush exhaust. I ordered a Roush axel-back from American Muscle 4 weeks ago. I had to get it off my car. The drone was driving me crazy. This Corsa exhaust is very comfortable at cruising speed (2,000 RPM) whereas the Roush was horrible at cruising speed. Thanks American Muscle for your great service once again. My buddy has a lift in his garage. Took us maybe 40 minutes. Super easy.


    Year: 2014 Submodel: GT Tallahassee, FL, USA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 04, 2014

    Corsa Sport

    I love these mufflers, quiet when at idle and highway speeds and nice sound when you get on it. Start ups are not that loud too. I did not believe such mufflers existed until I purchased the Corsa Sport. If you want same experience but much louder Durring hard acceleration than I guess Corsa Extreme would be the the better choice.


    Year: 2014 Submodel: GT Fairfax, VA, USA

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    May 23, 2014

    corsa sport axleback

    These sound far better than stock. Loud as heck when you hit the go pedal. Quiet when cruising. No drone at all. Install about 2 hours taking your time.


    Year: 2014 Submodel: GT Connecticut, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    August 27, 2015

    Best Exhaust set up.

    I bought the Corsa Sport Axle back and man let me tell you love the sound of it with all stock exhaust parts but then paired it up with Kooks Long tubes, high flow carted x-pipe and deleted resonators and it was a whole new symphony. Best part of it it's the awesome back firing it breaks necks everywhere you go. Love the set up and quality, will not go with anything else and will buy again. Highly recommend it.


    Year: 2014 Submodel: GT San Jose, CA

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    August 12, 2015

    Quiet at most times, loud at half throttle or more

    I tried to install these myself (backyard mechanic) with the Stang on ramps, but could not due to the lowered suspension. Too much interference with the suspension and/or exhaust pipe. Hired my mechanic friend who has a lift. He had to remove and reset the exhaust pipe. The sound is sweet. When engine warm, the exhaust is quieter, but deeper sounding. Volume increases with throttle increase. It can get VERY loud. Sounds louder than stock when first started until warmed up (30 seconds to near stock volume). After five minutes quieter than stock until the throttle opens. It puts a smile on the face of any gear head.


    Year: 2011 Submodel: GT Cleveland, Ohio

    Helpful (0)

  • 5/5

    August 09, 2016

    Couldn't be happier

    My wife and I wanted an exhaust that would turn heads, let everyone know it wasn't stock, but not obnoxius. The Corsa sport exhaust is exactly what we wanted. We couldn't be happier.


    Year: 2012 Submodel: GT

    Helpful (0)

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