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Borla ATAK Axle-Back Exhaust (11-12 GT)

25 Reviews
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  • Item #29009
  • MPN# 11791

  • Market Price $893.99
  • You Save 11% ($96.00)
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Product Videos Customer Photos
  • Loud Aggressive Sound
  • 4.5" Polished Tips
  • Durable Stainless Steel Construction
  • "ATAK" Race Inspired Mufflers
  • Fits 2011-2012 GT and 2012 BOSS 302 Mustangs
Loud Aggressive Sound. Add a touch of Borla excellence to your new 5.0 GT Mustang with an "ATAK" Axle-back exhaust system for an extremely aggressive muscle car sound that is not for the faint of heart.

ATAK. Acoustically-Tuned Applied Kinetics, is Borla's newest technology that produces the highest available dB (decibel) levels to pump the volume while retaining clarity of sound, avoiding distortion typically found in louder exhausts.

High Quality Construction. Constructed from ultra smooth mandrel bent 2.75" stainless steel tubing to improve exhaust flow the Borla Axle-back exhaust system features two race inspired "ATAK" mufflers with 4.5 inch polished stainless steel slant tips for aggressive sound and impressive looks.

Application. This Borla Stainless Steel exhaust system is specifically designed to be a direct bolt on upgrade reusing factory hardware for the 2011-2012 5.0L GT and 2012 BOSS 302 Mustangs.

Fitment: 2011 2012 Details

What's in the Box
  • (2) Muffler assemblies
Installation Info
Tech Specs
Axle-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.75" Tip Size: 4.5"
Muffler Type: Straight-Through Fitment: 2011-2012 GT & 2012 BOSS 302 Mustangs
Will it fit my Mustang?
  • Boss 302 - 12
  • GT - 11, 12

Most Helpful Reviews

Glad I spent an few extra bucks!

I installed these in under an hour using a 3/8 drive ratchet using a 9/16 and 15mm socket and of course some WD40. A couple tips for the installation, spray the rubber support hangers with WD40 (my car ...

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Helpful (11)


Amazing fit and sound. Zero drone. Be the silver back gorilla on the road with this system. Like a whole new car. Thank you Borla and American Muscle!!

Helpful (10)

Overall Rating 4.9 out of 5 stars
Read All 25 Reviews

Review & Install Video

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1 Questions / 1 Answers

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How does this compare to the catback sound wise? Do they sound much different?


  • I would assume that it sounds pretty similar. I have this axle back kit on my 2012 gt, it sounds amazing, I would highly recommend getting it.


    Good Answer (0) (1)

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Customer Reviews (25) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Full Day

Installation Cost:0-$100

  • Loudness / Volume 4.882353 4.9
  • Exhaust Note 4.941176 4.9
  • Fit & Finish 4.764706 4.8
  • Bang For Your Buck 4.411765 4.4

  • 5/5

    Installation Time: Less than 1 Hour

    February 05, 2012

    Glad I spent an few extra bucks!

    I installed these in under an hour using a 3/8 drive ratchet using a 9/16 and 15mm socket and of course some WD40. A couple tips for the installation, spray the rubber support hangers with WD40 (my car is new so didn't need to spray the clamp bolts), unbolt the clamp and remove bolt completely, once you get the muffler separated from the rest of the exhaust you will now need to wrestle it off of the rubber hangers, while under the car I used what I had next to me to prop up the exhaust using the can WD40, push the remaining exhaust pipe up as far as you can and place the "can" between the exhaust pipe and the black support brace it goes over, this will keep it up out of the way while you wrangle the muffler off of the rubber hangers, you may also loosen the rubber hanger bracket to give you some flexibility with getting the old muffler out and then installing the new one, once you have the new muffler supported by the rubber hangers you can now pop the can of WD40 (or similar wedge) out allowing the exhaust to come down and mate with the muffler, the clamps are tacked onto the old muffler but are easily removed with a back and forth motion, install the clamps and while tightening make sure to adjust the muffler for proper fitment at the Chrome tip. Just wanted to give some added shade tree mechanic tips. The difference in sound is very subtle at idle but when you mash the pedal the aggressive sound will put a smile on your face, the sound is pure and well...AWESOME!!! No drone detected at any rpm and the tips look great unlike others where the tip is 4" and yet when you look in the tip you see the 2 1/2 inch tailpipe which makes it look fake these tips are 4" nearly all the way to the muffler. Hope the tips help!


    Year: 2012 Submodel: Boss Hemet, Ca.

    Helpful (11) (0)

  • 5/5

    April 30, 2011


    Amazing fit and sound. Zero drone. Be the silver back gorilla on the road with this system. Like a whole new car. Thank you Borla and American Muscle!!


    Year: 2011 Submodel: GT

    Helpful (10) (2)

  • 5/5

    December 26, 2010


    AM has this unit at my doorstep two days after I ordered. Install was a breeze, didn't even jack the car up to do it. Sounds loud and throaty with absolutely zero drone at any RPM.


    Helpful (9) (2)

  • 5/5

    July 31, 2011

    Amazing sound!

    The sound that comes out of the Borla ATAK system is awesome. No drone at any rpm


    Year: 2011 Submodel: GT

    Helpful (5) (0)

  • 5/5

    April 01, 2011

    sounds great

    the borla atak mufflers sound and look amazing on my 2011 5.0 mustang. they are easy to install only took alittle over an hour, and gave my car that aggressive sound you'd come to expect from a mustang.


    Year: 2011 Submodel: GT

    Helpful (5) (0)

  • 5/5

    August 16, 2011

    Loud, Awesome and no drone!

    I would highly recommend this to anyone that wants a loud deep sounding exhaust for their mustang. It's absolutely noticeable over the stock exhaust and it definitely turns heads. installation was 45 minutes and can easily be done by anyone with half a brain.


    Year: 2012 Submodel: GT

    Helpful (4) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 09, 2013

    Read this if you are considering buying this exhaust!!!

    I have been looking around for an axle back exhaust for my 2012 GT premium for a while, a neighbor of mine recommended the Borla attack for my car and it is the best decision I could have made for my car. If you're looking for an exhaust stop looking at anything else and buy this one immediately. Sound clips of this exhaust do not compare to how amazing this exhaust sounds in person. It is very shuttle when cursing around but when you put your foot on the gas everyone will hear you. Bottom line buy it!!!


    Year: 2012 Submodel: GT Tampa, FL, USA

    Helpful (3) (0)

  • 5/5

    December 30, 2010


    Was shipped and at my door in 3 days. Install was very easy. Sounds great, looks amazing, and you can tell its of good quality.


    Helpful (4) (1)

  • 5/5

    Installation Time: Afternoon

    June 12, 2012


    I spent like two months searching for the right Axleback System,listening to video/audio clips. I must say the BORLA ATAK MUFFLERS are absolutly awesome.At idle just a slight rumble but when you open it up you unleash the sound of an animal.NO DRONE at all. worth the extra money to buy the best.....Thank You AM and Borla Customer for life..cant wait for my next Mod...LOL


    Year: 2011 Submodel: GT Smithtown N.Y.

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    May 01, 2012

    Great axle-back

    I put this on my 2012 gt cs. Great packaging, Instructions were completely wrong! Great sound! No drone!


    Year: 2012 Submodel: GT Florida, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    August 15, 2013

    The best

    Very happy with these mufflers. They weren't quite as shiney as they are in the picture though..which I expected, but still. A lot louder for just swapping out mufflers, good bit lighter, and look a lot better. When installing, it is a LOT easier to just remove the exhaust hanger mounts, slip the hangers in, and re-bolt up the hanger mounts, then bolt up the mufflers to the rest of the exhaust piping. If you're not an idiot, it only takes about an hour. I'd definitely spend the extra few bucks and get this than some ghetto muffler delete.


    Year: 2012 Submodel: GT Georgia

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    April 04, 2012

    Very Nice

    I'm pleased with everything except three things. The mufflers were not shined up like the picture which is not a huge deal. However, I wrestled the old mufflers off and fought to put the new ones on. Granted I only had a small jack and myself but it wasn't as easy as some people made it out to be. Also the instructions told me I would need a 3/8 socket and a 15mm socket.. Neither one fit the strap.. and the strap was tack welded to the stock muffler and Borla doesn't supply extra straps so I ended up breaking the tacks to put on the new mufflers... other then that I love them


    Year: 2012 Submodel: GT

    Helpful (2) (1)

  • 5/5

    April 27, 2011


    best sounding exhaust


    Year: 2011 Submodel: GT

    Helpful (2) (2)

  • 4/5

    November 28, 2010

    Darn good sound!

    Pretty dang good if you ask me. Easy to install and it sounds great.


    Helpful (0) (3)

  • 5/5

    Installation Time: Less than 1 Hour

    January 21, 2014

    Awesome Sound

    Just ordered the Borla Atak, took about 4-5 days to arrive. I did the install myself in about an hour, no problem with fitment, fits really good and sounds awesome. Did a lot of homework before I went with the Borla Atak. This is by far the BEST EXHAUST SOUND you can ever have....No REGRETS.....American Muscle, thank you for making this transaction easy...


    Year: 2012 Submodel: GT Orange County, CA, USA

    Helpful (0) (1)

  • 3/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    April 05, 2016

    Very Expensive Upgrade With Little Return On Investment

    According to other reviewers on this product (nothing wrong with American Muscle company, they are fantastic), I thought I would be hearing a sound reminiscent of a real old-school, almost straight-pipe set-up, but my expectations were just set way, WAY too high after sifting through the comments here. I really need to learn that most reviewers, reviewing car parts, aren't a very reliable source to base my decision on (and you can say that about my review here, if it makes you feel better). My previous Mustang was a 2008 GT with stock headers, stock mid-pipe, and the Roush Extreme Performance Catback exhaust. It sounded freaking beautiful. Loud at start-up, loud on Idle, loud in the cabin (but not obnoxiously loud) just beautifully loud all the time. It made its presence known. I suppose I just got so used to its sound, that I was expecting it out of the new Borla Atak exhaust for my 2012 GT. I knew the straight pipe, catback sound would be difficult to achieve on an axle-back set-up, but I thought by reading these comments for the Borla Atak's, I would be getting the closest to the Roush Extreme Performance that I possibly could. And, the cost of a quality catback set-up for the 2012 GT was way outside my budget. Keep in mind, I have a bone stock 2012 GT, with only the Borla Atak exhaust. I was excited when I received the exhaust and had them installed by QuickLane. Now after the install was complete, on first start-up my heart kind of sank a little bit. I felt the hurt in my gut. The truth is, the Atak's sound is only marginally louder than stock exhaust. The Atak's sound does have a nice muscle car tone, and like I said, they are just slightly louder than stock, which is no doubt a good thing. WOT sounds good and loud, but it's a 5.0 for God's sake, I wanted that engine to be heard from a block away, and this exhaust doesn't deliver it. Again, I'm so accustomed to my previous 2008 Roush catback's, that the Borla Atak exhaust, for me personally, left too much to be desired. They are very expensive for only a minor change in sound. ONLY UNLESS they are paired with mid-pipes and headers. Then I could understand the potential of the Atak's. I will give a major thumbs-up to the 4.5" tips , with the embossed Borla logo's! They are really beautiful, and they fit the rear valance just right! But I can't justify the cost for just the appearance. Simply put, the Borla Atak's are just an expensive muffler upgrade over stock muffler. You interpret this review however you'd like. I feel like I threw a ton of money at a sub-par set-up, and I should've saved up a bit more and sucked up the cost of a proper catback system. I guess I can live with the Borla Atak's for now, but in time, I WILL eventually swap them out for something more respectable to the 5.0.


    Year: 2012 Submodel: GT

    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 01, 2016

    Monster Sound

    This pony has awoken, and when you want to be heard you will be heard across town. The thing I like most about this exhaust is once you've reached your speed you can hardly tell you have a performance exhaust on.


    Year: 2012 Submodel: GT Devine Tx

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    August 28, 2015

    Best Axle-backs Available

    After trying two other popular brands of axle-backs, I tried out the ATAK's. The fit wasn't the best but that is because of my off-road x-pipe. The quality and engineering being the ATAK's, and even Borla is worth the price. The bigger tips look great compared to stock or any other brand. I've heard these axle-backs in person paired with long tube headers, off-road x-pipe, off-road h-pipe, and even with the axle-backs alone. They all sound amazing, so whatever else you are doing from the headers back, it'll sound amazing with the ATAK's. I have very little drone only because I have the catless x, but compared to the other axle-backs I had, it has the least drone by far. They aren't obnoxiously loud at all while cruising or at low RPMs even with my catless x. But, the cold start and WOT are very loud and aggressive and sound amazing. DO NOT cheap out with axle-backs. Buy this set. You will not be disappointed.


    Year: 2011 Submodel: GT Philadelphia, PA

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    February 09, 2015

    Most Unique Sound for you Mustang

    I am completely satisfied. The sound is just right and doesn't annoy at cruising speeds. The install was easy. Hardest part was removing the Driver side muffler. Took me about 90 min total. It already turns heads.


    Year: 2012 Submodel: GT Sandy, OR

    Helpful (0) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    July 15, 2014

    Borla ATAK Axle-Back Exhaust

    I found the stock 2011 GT surprisingly quiet for such a powerhouse of a car. Coming from a v6 with Borla's, I got so used to hearing that sweet exhaust note and the stock exhaust just didn't cut it. Even with just the axle back, the ATAK's are about as obnoxious as you can get, and I love it. It has a very distinct roar (yes, roar is the perfect term for this sound) and makes the GT sound like it is one angry car. Letting off the gas at a higher RPM and the popping sounds like a carpet bombing. At a low RPM (<3k) it purrs like a kitten, nice and quiet but once you hit the throttle it screams. If you want to be noticed, buy this exhaust.


    Year: 2011 Submodel: GT Edmonton, AB

    Helpful (0) (0)

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