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Corsa After-Cat X-Pipe (11-14 GT)

Market Price $370.99 You Save 12% ($43.99)
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  • Item 100505
  • MPN# 14318

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    Features & Details

    • Converts Factory "H" Pipe to an "X" Pipe
    • Improves Exhaust Flow for More Power
    • Raspy Race Car Growl
    • 2.75" Mandrel-Bent Tubing
    • 16-Gauge 304L Stainless Steel Construction
    • Clamp-On Design
    • Reuses Stock Catalytic Converters - Smog Legal
    • Fits 2011-2014 GT
    Improves Exhaust Flow. Add even more horsepower and torque to the rear wheels of your Mustang by replacing your stock H-Pipe with a Corsa After Cat X-Pipe. A Corsa X-Pipe will greatly improve your pony's exhaust flow for an increase in overall performance.

    Race Car Growl. This free flowing Corsa After-Cat X-Pipe for the 2011 to 2014 Mustang's not only increases power, but with its modern "X" crossover pipe design it also adds a crisp raspy, race car growl to the sound of your exhaust.

    Reuses Stock Cats. The Corsa X-Pipe bolts up directly behind the stock catalytic converters with no cutting required saving you time and money. By reusing your stock catalytic converters you ensure that Mustang is smog-legal.

    Durable Construction. Corsa Mid Pipes are constructed from free-flowing 2.75" diameter CNC mandrel bent 16-gauge 304L stainless steel tubing with a merged X crossover design for improved exhaust flow and a long life.

    Application. The Corsa After-Cat X-Pipe is a specifically designed for use on 2011 to 2014 5.0L GT Mustangs with either aftermarket short tube headers or the stock manifolds installed.

    Fitment: 2011 2012 2013 2014 Details

    What's in the Box
    • (1) After-cat X-Pipe
    • (3) Clamps
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard "X" Type Headers Required: Shorty or stock manifolds
    Piping Material: Stainless Steel Piping Size: 2.75"
    Catalytic Converter: Reuses stock Catalytic Converters Fitment: 2011-2014 GT, BOSS Mustangs
    Will it fit my Mustang?
    • GT - 11, 12, 13, 14

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    1 Questions / 1 Answers

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    Have GT 500 Axleback...see someone stating this will make exhaust quieter which is what I don't that typical? Any sound clips?


    • Since the Corsa After-Cat X-Pipe does not directly affect your cats and mufflers it should have no effect on exhaust volume. What it will change is the exhaust note, with an X pipe giving a raspier, racier tone over the stock's deeper muscle car rumble.

      Rob D

    Helpful (0)

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    Customer Reviews (16) Write a Review

    Overall Rating 4.6

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Loudness / Volume 4.142857 4.1
    • Exhaust Note 4.533333 4.5
    • Fit & Finish 4.733333 4.7
    • Bang For Your Buck 4 4

    • 5/5

      Installation Time: Less than 1 Hour

      April 14, 2014

      Paired with my Roush axlebacks

      Since I am the first to review this product, I feel the responsibility to be here we go: Install: The fit was easy and perfect for my 2013 GT. I tried to do the install myself, but two of the bolt clamps were impossible to remove with the large ratchet/crescent wrenches I own (the bolts are both vertical, with the head end farthest away from the ground). Given the limited space available to remove the clamps, I decided to take it a local mechanic. He said it took him less than an hour total (don't let a mechanic tell you otherwise). Absolutely no welding was required; this is a true bolt-on swap of the stock H-pipe. Sound: I already have the Roush Axleback Exhaust installed. I noticed the idle sound is slightly softer, but the sound at acceleration sounds much better. The X-pipe made the start-up roar much louder, and faster. Already received compliments on the sound, and the very very light drone of the Roush axlebacks has been completely removed. I was happy to that you can go 100mph @ ~2,100 RPM (steady, without accelerating) and the exhaust doesn't make a sound at all. The instant you press the pedal, you get the roar, regardless of your speed. Performance: I did not do a before/after DYNO, but I can honestly say the acceleration is MUCH smoother after installing the X-pipe. With the stock H-pipe, the car seemed to "gulp" upon a heavy press of the gas pedal, but that "gulp" has been almost completely removed. I don't know how else to say it, but the car just seems to be "breathing" easier, and it shows in the acceleration more than anything. Other Comments: - The install is very easy; read the instructions given on the product page (but keep in mind, there are two vertical bolts which are very difficult to unbolt) - No welding is required - Idle is slightly quieter, but the improved roar is noticeable - Night and day difference for full throttle acceleration


      Year: 2013 Submodel: GT Houston, TX, USA

      Helpful (5)

    • 4/5

      Installation Time: Less than 1 Hour

      December 26, 2016

      Good product

      I purchased the Corsa X-Pipe in an effort to lower or eliminate drone after installing a pair of PYPEBOMBS on my 2012 mustang. Drone is still there, no change. I now have a check engine light that has come on, took it to a local shop and was basically told it was nothing to worry about and cleared code. I have decided to scrap the PYPEBOMB axle back exhaust after only 3 weeks. I cant handle that drone in the cabin. The good news is that I am installing a set of CORSA Extreme axle back in lieu of the pype's pypebombs. I was looking for the "mustang" sound and got a lot more than just sound from Pypes. I believe with the reputation of the Corsa X-Pype, it will function as designed after pairing it with the proper axle back. I did notice a nice tone on down shifts with this X-Pype hoping for more of the same when paired with the Corsa Extreme.


      Year: 2012 Submodel: GT

      Helpful (4)

    • 4/5

      Installation Time: Less than 1 Hour

      April 18, 2016

      Think Twice

      Overall this is a good product. IT bolted right up and took less than an hour to install. I am sure it is doing something for the exhaust flow but any real change is not noticeable. That being said the main difference I have is how much quieter and less "mean" my car sounds. I have GT500 axle backs that were almost too quiet for my taste to begin with. After installing this part my car is definitely too quiet now and the tone is more subdued.


      Year: 2014 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Less than 1 Hour

      February 06, 2017

      Awesome Rumble

      The xpipe really gives the car a raspier sound making it sound like a race car, not that much drone if installed correctly


      Year: 2012 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      January 13, 2017

      Corsa X Pipe

      Wanted my Stage 3 Roush to sound like a beast and this was a great addition over stock mid pipe. As other reviews mention be aware IT MAKES THE EXHAUST QUIETER. Startup, idle and low RPM shifting are noticeably quieter now. But... when I step on it or shift over 3000 RPMs it's a much louder and "crisper" sound. Before it almost sounded loud but muffled if that makes any sense? It's a more aggressive tone now for sure and I have already had people compliment the sound after just a week of having it on. Throttle response is noticeably better too which was a surprise for me! Personally I like the exhaust toned down when I want to listen to music or just cruise but want it to sound like a beast when I get on it so this was a perfect upgrade!


      Year: 2013 Submodel: Other

      Helpful (2)

    • 5/5

      August 30, 2016

      2014 Mustang GT - Corsa X Pipe

      I installed the Corsa X Pipe in my garage using a set of ramps. Install time was approximately 90 minutes. The quality of the assembly is first rate, the fit was perfect, and the instructions were easy to understand. I read posts on line prior to doing the install that talked about the front clamp bolts that stated they were hard to get off since the bolt head was facing the floor of the car. This was also mention in Corsa's install instructions. It is a tight area so I used a combination wrench to get the bolt to release but than there was not enough room to get another turn so I used a 1/4 drive ratchet to loosen some more. You can also use a socket at the bottom of the bolt to assist once it is loose. Very happy with the results. I would say that the tone of the exhaust sounds a little more deeper with the X Pipe installed. I am also running the Corsa Sport series mufflers.


      Year: 2014 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      March 17, 2016

      Awesome Sound!

      First of all, I gotta say this X-Pipe with my Heartthrob exhaust make my 5.0 sound like a true muscle car. Don't care much for the performance gains, but just to cruise downtown with the top down and hear my exhaust rumble is so awesome now! Install took only an hour, could've been shorter if the freaking stock clamps weren't in the opposite direction and made it so hard to reach. We decided to cut the stock mid pipe off instead and go from there. Planning on getting some JBA shorty headers along with this setup and my exhaust system will be complete! Thanks AM!


      Year: 2011 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      May 25, 2015

      corsa after cat x pipe

      the sound with the roush axel backs is awesome i do feel a little better throttle response glad i did it.. as for install, looks easy enough, but i swallowed my pride took my car to a local muffler shop.. so glad i did no laying on my back fighting that one bolt,, the were done in 45 min no claps welded up no exhaust leaks perfect


      Year: 2013 Submodel: GT ca

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 22, 2015

      Corsa X pipe

      The corsa x pipe bolts right up but it seems maybe the right side could be a 1/2' longer just take your time and with little tweeting it all lines up pretty darn good. It does seem to mellow out the exaust tone a bit and definitely flows better.


      Year: 2014 Submodel: GT Woodbine, Md

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      February 13, 2015

      Great sound

      It was an awesome sound! Glad I went with this brand! Great price!


      Year: 2014 Submodel: GT Fremont, CA

      Helpful (2)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      December 19, 2014

      2014 GT 5.0 Abitaman

      I first installed Corsa Extreme axle backs and was happy with the results. Then like a junkie I wanted more so I installed the aft cat corsa xpipe. Well it has a much deeper sound and you can tell an increase in horsepower and torque. The best part is that I didn't have any drone CRUISE QUIET AND GET ON IT AND IT WILL BLAST A ROAR THAT EVERYONE HEARS!! Thanks, American Muscle!!


      Year: 2014 Submodel: GT Abita Springs, LA, USA

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      October 21, 2014

      Great sound, superior quality.

      Perfect in combination with my Corsa extremes. Can't go wrong.


      Year: 2014 Submodel: GT Gallatin, TN, USA

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      August 23, 2014

      Corsa 2 3/4 xpipe

      Just installed corsa's 2 3/4" xpipe, on my 2014 GT mustang. Corsa did a great job on this product. I love the Quality n the fitment was perfect. The installation was a breeze, n only took a couple of hours to install. Anyone can do the install but a lift is highly recommended. As I knew be for hand. The xpipe did not make the exhaust any louder. The exhaust note did change some, for the better. The engine breathes a whole lot better now. The exhaust flow definitely improve n noticeable at the top end of the RPM rang. I highly recommend corsa's xpipe n looking forward to purchasing more corsa products....... N last but not least. Thank you American muscle for supplying me w all my mustang needs.....


      Year: 2014 Submodel: GT Boston, MA, USA

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 23, 2014

      Corsa x pipes

      Great product! I have roush axil back exhaust and the two combind make an aggressive sound, just perfect not to loud at low ideal but when stump on they sound like music to my ears!!


      Year: 2012 Submodel: GT Miami, FL, USA

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      January 21, 2015

      Great product!

      Fit was good, only had to loosen it back up once to adjust the alignment. Overall it was all that I expected. Definitely sounds like it flows better than the stock H-pipe. The exhaust volume is quieter at idle, but when you get on it it sounds a lot cleaner. -Nuke Stang


      Year: 2014 Submodel: GT Ohio

      Helpful (1)

    • 4/5

      Installation Time: Less than 1 Hour

      September 04, 2014

      Great quality product

      Definitely better quality than the equivalent BBK after cat X pipe (know someone with it). I have roush axle backs already on the car. This product quieted down the overall loudness. Exhaust has a different tone, as expected. Have not noticed an increase in power at full throttle. If it is there I'm sure it's minimal. Installation was ultra easy. Less than an hour. Rolled up the front of the car onto ramps. My car is a 2014 so it may have been easier since the exhaust wasn't rusted on yet. Never the less, I'm impressed as I like the tone and the product look and finish. I conclude that the bbk pipe is much cheaper and gives you the same "gains" just not the same quality.


      Year: 2014 Submodel: GT New York, NY, USA

      Helpful (1)

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