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Corsa Xtreme Axle-Back Exhaust w/ Black Tips (11-14 GT; 12-13 BOSS 302)

Item 388821
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    Features, Video & Details

    • Corsa "Xtreme" Axle-Back
    • Deep Aggressive Sound with No Drone
    • Straight-Through Mufflers Featuring Corsa's Patented RSC Technology
    • 304L Stainless Steel Construction
    • 3" Diameter Mandrel-Bent Tubing
    • Black Chrome, 4" Pro-Series Tips
    • Made in the USA
    • Fits 2011-2014 GT and 2012-2013 BOSS Mustangs

    Review & Installation Video

    Review & Install Video

    Xtreme Aggressive Sound. Corsa Performance Xtreme axleback systems are acoustically styled and engineered to give your 5.0L coyote powered S197 Mustang a throaty aggressive sound under acceleration and a deep 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 3.0" diameter premium grade 304 stainless steel tubing for a improved exhaust flow and a perfect fit. The system features two straight-through mufflers that end with black chrome 4" Pro-Series tips, that exit in the stock location for impressive good looks.

    Application. This Corsa Xtreme Axle-Back Exhaust is designed as a direct fit bolt-on upgrade for the 2011-2014 GT and 2012-2013 BOSS Mustangs equipped with the coyote 5.0L V8 engine.

    Fitment: 2011 2012 2013 2014 Details

    MPN# 14317BLK

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    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 SteelTip Material :Black Chrome
    Piping Size:3"Tip Size:4"
    Muffler Type:Straight-throughFitment:2011-2014 GT, BOSS
    Will it fit my Mustang?

      Customer Photos (6) Submit Your Photo

      View All 6 Photos

        Questions & Answers (16)

        5 Top Rated Questions

        Will these fit the borla over axle pipes?

        • Unfortunately the Borla over axle pipes will only work with Borla exhaust setups.

        Helpful (1)

        I have the Magnaflow Competition Catback on my 2012 GT. Would installing these require just bolting off the mufflers on the Magnaflow Catback and bolting on the Corsa in their place up to the Magnaflow over-axle piping, or is there cutting required with my current exhaust?

        • The Corsa Xtreme Axle-Back Exhaust w/ Black Tips will install in place of the Magnaflow muffler assemblies on the Magnaflow Competition Cat-Back Exhaust without the need for cutting.

        Helpful (1)

        Correction... you guys are incorrect. These corsa extreme bolt right up to borla over axles and lth over axles. The corsa is 3 inch but necked down right at the connection point to fit stock 2- 3/4". I should. I ought to be acknowledged for pointing this out also.

        What’s the difference between the corsa xtreme for the 05-10 Mustang gt and the 11-14 Mustang gt

        • The difference between the Corsa Xtreme for the 05-10 GT and 11-14 GT is the fitment.

        Helpful (0)

        What over axle pipes are recommended to be used with the corsa extremes?

        • We only offer an LTH and Borla overaxle pipe that both come out to 2.75 inches in diameter. This axleback is 3 inches, so modification would be necessary for proper fitment.

        Helpful (0)
        Post Your Question
        10 More Questions
        What over axle pipes are these supposed to be used with? 1 answer
        Hi, does AM sell Corsa Xtreme Axle-Back with quad tips? 0 answer
        Are these louder than ataks??? Keep in mind i have a 2011 coyote with longtube headers and a catless x. 0 answer
        Do these fit on a 2011 GT500? In the description I cannot find that information, but normally it should have the same installation requirements as a 11-14 GT? 0 answer
        I have a 2014 Mustang GT. I want to combine these Corsa Xtremes with an off-road X Pipe. What else will I need besides the X pipe and the corsa Xtremes? What will I need to connect those and can I purchase it here? Also I was wondering if I would have to get a tune if I get an x pipe 1 answer
        how would I be able to pair these with my BBK LTH and BBK O/R x pipe? currently running pypes superbomb catback but looking to get new over axles 1 answer
        Will these fit a 2014 rs3 with the Roush valence? 1 answer
        I bought the corsa extreme axle backs and want 3 inch exhaust all the way to the headers but cant find over axle pipes that are 3 inch like in the cat back exhaust systems that you can buy. Any ideas? 1 answer
        I have the pypes pype bomb super system catback would this be a direct bolt on? 1 answer
        The product description says 3' mandrel bent tubing, does this mean it'll bolt up to my 3' over axle pipes? or do i need to get the factory pipes? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Loudness / Volume 4.669811 4.7
          • Exhaust Note 4.924528 4.9
          • Fit & Finish 4.886793 4.9
          • Bang For Your Buck 4.584906 4.6



          • 5/5

            July 21, 2019

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Must have

            By far the best exhaust I’ve had in any of my mustangs. Plus I can’t wait to drive this car everyday

            Rich02gt

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            July 11, 2019

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            2013 Mustang GT Corsa Xtreme exhaust install.

            Put the stang on a few ramps to raise it some. It is a bit difficult to remove the old exhaust but once you do it's not hard at all. Worth every penny. Smile is a bit bigger when driving now. Love the way it makes the rear look. Sounds great! Deep growl. When you stomp on it, it gets even better. best part though, NO DRONE!!!

            AaronR

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            June 17, 2019

            Corsa Extreme

            This exhaust is top notch quality. It looks amazing and sounds even better. For an axle back this thing will melt faces. Corsa claims zero drone and is 100 true. If ur looking for sexy and loud and a super easy install this is for you!!!!

            Jjhill520

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            May 24, 2019

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Quiet when needed; loud when wanted

            When I first start it up and it is idling, it is very quiet. When I roll the windows up and I am sitting at a stoplight, it is quieter than stock exhaust. All of that is a good thing for the following reason: When I stomp on it, it sounds loud and absolutely amazing!! I have not heard any other mustang exhaust that sounds this good!! I have the option of waking everyone up in the neighborhood, or driving off quietly in the morning. As a adult with a house, wife, and two kids, I did NOT want something that sounds like a redneck, Saturday night dirt track, race car. This sounds loud, mean, and high-quality muscle!! As far as installation goes, it could not have been easier. Everything lines up perfectly, and it is a very lightweight product. As long as the car is up in the air, anybody can install it with simple tools. I did notice some discrepancies with the instructions versus what you should actually do to install it, but is easily figured out. There are two 5.0 Mustang‘s at my work. One is a FlowMaster, the other is a Roush. Mine is by far louder and better sounding!! Mine tells everyone I am arriving to work. EVERYONE!! To sum it up, this is one of the most expensive axle-back exhausts you can buy, and I would have paid more for this exhaust because not only is it exactly what I wanted, but it is also the highest quality product and greatest sound I could buy!

            BigD

            Year: 2013 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            April 15, 2019

            Corsa Extreme

            amazing fit, bolted right up, the tone is VEEEERY raspy for those that are not looking for that, (that is what i wanted). no drone on the highway, screams up top. tons of popping on the way down between shifts and when decelerating. one of the exhaust tips does reach out farther than the other one however, but that might be the way i mounted it.

            RolandB

            Year: 2014 Submodel: GT

            Helpful (2)

          • 5/5

            April 09, 2019

            Perfect!

            Sound and look great! Install was right at two hours as advertised. Loud enough with no drone on the road till you open it up. Then she growls.

            Moonshine

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            April 03, 2019

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            LOUD

            When I say loud I mean EXTREMELY loud. These axle-backs really opened up my 5.0. I have BBK long tube headers, catted x-pipe, and corsa xtreme axle-backs and the thing SCREAMS. I knew it was going to be loud by reading the reviews but I did not expect them to be as loud as they are. The nice part is, if you shift early and keep it under 2500rpms, they are fairly quiet. Once you start climbing up in RPM’s though, they are stupid loud. Cold starts are almost unbearable from behind the car. They are not too raspy but have a great lower tone when driving (not nearly as low as the Roush’s). Very very little drone on highway doing 70 in 6th. Even though this is the loudest setup I have ever heard, I absolutely LOVE them. No drone, you can be quiet when you want, and the finish and look of them is beautiful. The pops and crackles are amazing as well. If you are on the fence about brands, put Corsa to the top because the build quality and finish is spot on and the no drone is great. I came from a set of flowmaster American thunders that droned so bad.

            BCLifestyle

            Year: 2014 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            January 26, 2019

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Excellent

            Absolutely the best decision to buy these.i had the flowmaster outlaw which were loud in and out of the car but these corsa extreme make you forget how loud they really are because they are really quiet on the inside of the car but the outside completely opposite. Worth every penny.

            ReginaldS

            Year: 2012 Submodel: GT

            Helpful (2)

          • 4/5

            Installation Time: Afternoon

            November 26, 2018

            Great Product! Poor Service...

            I installed these mufflers on my 2012 Mustang GT. The sound is perfect and the quality is high. However, I received my mufflers with a manufacturing defect. The driver side muffler had a noticeable blemish on the driver side exhaust tip. This did not happen during the install as there was plastic blocking where the damage was. I didn't notice the blemish until I took the plastic off and got it in the sunlight. AmericanMuscle.com offered a $50 credit to remedy this. I don't feel that this is acceptable service from American Muscle. These mufflers cost $900 and the tips are welded, so they are not easily replaced - let alone for $50. AM should have offered a replacement themselves. However, I contacted Corsa and they sent a replacement. I would give AM 2 stars at best. The mufflers are 5 stars and so is Corsa, but I knocked a star because I shouldn't have to deal with any blemishes on a $900 axle-back setup, but I understand that it happens from time to time. The exhaust is great. I'm very disappointed with my first experience with AmericanMuscle.com.

            5Liters

            Year: 2012 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            August 30, 2018

            Neighbors not up? They are now!

            I was hesitant paying that amount of money for just axle-Backs. I am sure glad I did, as the old adage states, you get what you pay for. And these are top notch! The tone at a cold start up is outstanding, and you will def turn heads at WOT, or even at 5000RPMs. One of the best features: no drone whatsoever while cruising at 2000RPMs. The picture of the black tips does not do it justice at all. These things are plain sexy. Install was pretty straight forward. Used jack and jack stands. Get yourself a helper and save ya some headaches. The worst part was taking the stock ones off. If you're on the fence, take the leap and get these. You'll be glad you did!

            BillT

            Year: 2011 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            July 02, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Just Awesome!

            I was skeptic at first paying x amount of $$$ for just axle backs, but it did not take much to convince me at the AM 2018 Show. Love the fit and finish, sounds awesome, NO DRONE!! That was really my main reason loved my previous set up but had to move on. Very happy so far 2 thumbs up for Corsa and American Muscle!

            Richard

            Year: 2012 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            June 25, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Quite the had turner.

            I put these on right before Street Machine Nationals. and I have to say, even with all those cars cruising up and down the streets, people's heads still turned towards mine when I went by. Everything fit perfectly, and honestly I am quite new to working on cars. So as one of the first things I tried, it was extremely easy. It took me about an hour, give or take to do, and the results are FANTASTIC. When you are just going through town, its quiet enough not to draw unwanted attention, but when you want it to be noticed, it really can be. The sound is highly aggressive. In addition, it looks fantastic. I recommend Corsa as the go to.

            JarridL

            Year: 2011 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            June 21, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Corsa is the way to go

            Wow! Where do I start, first make sure you have right tools and an extra set of hands to make the install a bit easier. Took me about an hour and a half with help. Once installed all the frustration you suffered while installing while be gone FAST. The exhaust note is beautiful when you step on it yet quite calm upon idle(if warmed up) and cruising speed. Also absolutely no drone. Great option and totally worth the price thank you AM

            NDOTJONES

            Year: 2014 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            June 19, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Could not be happier!

            Great bang for your buck, great sound, quick professional install. To top it off during my install, one of the Corsa Performance mustangs won the Rev/loudness competition! The Corsa guys were great, plus it was for a great cause, Make-A-Wish/AM2018.

            Taino5oh

            Year: 2011 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            June 13, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Deep aggressive sound

            I had roush axle back exhaust and then I switched over to corsa and it was the best thing ever

            OsvaldoS

            Year: 2013 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            June 01, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            Corsa Extreme is the way to go!

            Very easy installation, and the sound is beyond words! It puts a smile from ear to ear when I drive it!

            MichelleLeeGT

            Year: 2014 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            May 19, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            No drone

            After doing a car delete and pypes bomb, that was just wayyyyy too much drone on the highway it hurt to drive it. So I bit the bullet and splurged on the corsa extremes becaus of all the reviews. And there is NO drone at highway speeds but once you floor it sounds like the world is coming to an end. Plenty of pops and other wonderful noises. One bad thing is my fuel economy went down cuz I'm always flooring it just to hear it.

            Bill

            Year: 2014 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            April 25, 2018

            awesome sound

            easy install, did with x pipe and over axles. the sound is loud at cold start, but mellow at cruise, barely notice, but any time you give it gas, it really screams, I get compliments all the time. I absolutely love the sound. perfect with no drone what so ever.

            JORGER

            Year: 2013 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            April 23, 2018

            Review from Corsa Xtreme Axle-Back Exhaust (11-14 GT; 12-13 BOSS 302)

            So loud!

            Fitment was outstanding, shipment was fast and they are super loud paired up with cat delete h pipe. Wow!

            Ed

            Year: 2014 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            April 21, 2018

            Amazing

            I had the Borla Stingers but traded them for a Jeep Hardtop. I went with these this time around and I like the sound from these better. Zero drones with stock exhaust forward. Aggressive and loud. People rubber neck from the sound alone.

            Chance84

            Year: 2011 Submodel: GT

            Helpful (5)

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