Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $15,000!! Enter Now

Magnaflow Competition Series Cat-Back Exhaust (13-14 GT)

Item 48051
Call a Mustang Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Market Price $1,121.99 You Save 12% ($129.20)
Our Price


FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock

Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

      Review & Installation Video

      Hey I'm Justin with, and this is my quick look into the Magnaflow Competition Catback exhaust, fitting all 2013 Mustang GTs. The Competition is a very popular Catback here on the site with just about every generation Mustang, this is due in part to the quality construction, aggressive tone, and solid performance gains that this particular exhaust offers. This entire system has been constructed using 100% stainless steel, and does feature mandrel bent stainless steel piping, which is pretty much the standard for all 2013 aftermarket Catbacks. That aggressive tone I mentioned earlier does come from these Competition series mufflers, which feature that straight through design, really freeing up the flow of exhaust. Finally, everything exits out these brightly polished 4" tips. Since this is a Catback, you can expect a little more work under the car, but overall the install should be pretty painless, and only take you 2 hours from start to finish. Now let's hear how the Magnaflow Competition Catback sounds compared to our factory exhaust.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Aggressive Musclecar Sound
      • Stainless Steel Construction
      • 3" Mandrel-Bent Tubing
      • 4" Polished Tips
      • Fits 2013-2014 GT Mustangs


      Add Horsepower. Stop choking your 5.0 with a stock exhaust system and enjoy more horsepower with a Magnaflow Competition Cat-Back. By reducing back pressure and giving your Mustang GT a free-flowing exhaust, you'll see great power and torque gains.

      Aggressive Musclecar Sound. Give your the 2013-2014 Mustang GT a deep, aggressive rumble that will make lesser cars clear a path at lights with a Magnaflow Competition Cat-Back. This premium quality exhaust features free-flowing, straight-through mufflers that increase power and give your GT an unmistakable muscle car sound.

      Magnaflow Quality. Each piece is made from 3" mandrel bent stainless steel tubing for long life and a perfect fit. The straight-through mufflers end with brightly polished 4" stainless steel tips that exit in the stock locations for impressive styling.

      Application. Made to be a direct bolt on, this Magnaflow catback will bolt straight up to the factory Mid-Pipe without any extra modifications required on your the 2013-2014 Mustang GT to give it the deepest, most aggressive sound possible.

      Note. Coupon codes cannot be applied to this product.

      Fitment: 2013 2014 Details

      MPN# 15150

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (19)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 19 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • April 13, 2019

        5 2014 GT - VincentB Installation Time: Full Day


        Added this along with magnaflow headers, and xpipe all together set up sounds great took several hour for total install awesome

        Helpful (0)
      • September 04, 2017

        5 2014 GT - jakeh Installation Time: Less than 1 Hour

        completely worth it

        i bought this exhaust off someone from craigslist and it had sat in there garage for a year. put it on my 2014 and its sounds incredible, take off's sound amazing hitting the 3-4k range has the growl and aggresive sound of a muscle car. not bad at high gear low idle. im loving it so far and cant wait to get the x pipe and heads so itll be even louder. buy this well worth it

        Helpful (5)
      • September 06, 2016

        4 2014 GT - TJZane21

        My Neighbors Hate Me, Enough Said

        Spent a few hours at a friend's house installing this a couple of weekends ago. Instantly impressed with the sound and would buy another if I had the money and another Mustang to put it on. For the next week I had to get up extra early to go to work and cold starts at 6AM just make my whole day start off right. The neighbors lean out their windows and yell as if I can hear them over the sound of the bald eagles screeching out of the tips. Only complaint I have is a slight drone from 1500-2500 RPM. Solution, don't drive in that range. 9/10, will recommend for years to anyone looking to make suburbia less mundane

        Helpful (8)
      • July 22, 2016

        2 2013 GT - happyjackson

        Drone is deafening

        Drone, yeah that 2000 RPM drone, it is deafening, really, to the tune of 86 db. I know around town you never stay at a speed that will bother you. On the freeway it is an entirely different story. You cannot carry on a conversation or listen to the radio at cruising speed. I put $200 worth of sound proofing in to no avail. Don’t lower the car the left hand pipe will bang on the axle. Most of the connections leak ever so slightly no matter how much you tighten them. Spent way too much money for such a sub-par system. The Magnaflow Competition’s are coming out in favor of a set of Corsa Extrem’s in hopes the drone goes with them.

        Helpful (7)
      • May 22, 2016

        5 2013 GT - danstang13 Installation Time: Shop Install

        Awesome Exhaust!

        Shopped around watching a lot of videos on exhausts trying to find the right one. Ended up with this exhaust and love every minute of it. Yes it is a little pricey but you can't beat the warranty and the quality. Have owned Magnaflow exhausts before on other cars and they last a long time while others rust. Sounds amazing driving around town and then when the cars at WOT, it is just music to your ear. Lots of compliments on the exhaust as well.

        Helpful (6)
      • November 05, 2015

        5 2014 - Bren Installation Time: Afternoon

        Worth it

        I was displeased with the sound of the stock pipes. I work at a ford plant and many my friends own mustangs and when someone bought an exhaust we would compare the sound while listening to all of my friends pipes and after hearing all the exhaust sound tests from American Muscle I decided on these amazing pipes. Yes they are a little expensive but we'll worth the buy. If I'm driving down a busy road with cars on both sides I can feel the reverb of the exhaust. It's awesome the head turning factor is also a plus.

        Helpful (8)
      • April 12, 2015

        3 2011 GT - WWilson Installation Time: Afternoon

        I will never buy Magnaflow again.

        The exhaust note makes me think that someone was trying to make a V8 sound as if it was trying to sound like a mad Bumble Bee. The exhaust rattled a little bit so I took it to a shop and had them adjust it. It sounded better but not quiet like you would expect for 1K. Then I lowered my car using Steeda Sport Spring, Koni Orange Sh and Sts, Whiteline CA relocation kit, JandM Panhard, and Steeda HD Strut Mounts. No my exhaust makes my car sound like a trash mobile that is used to deliver bad things. It rattles, bumps, it sounds horrible and Im stuck with it. DO NOT BUY!! The Roush sounds way better!

        Helpful (6)
      • July 09, 2014

        5 2014 GT - JrBrewer Installation Time: Less than 1 Hour

        Love the sound.

        I spent a few weeks watching videos as well a reading reviews.Honestly none of them do any justice. The minute I started up my 2014 after the install a cheesy ear to ear smile appeared on my face. Install was straight forward.

        Helpful (6)
      • June 20, 2014

        5 2014 GT - Pedal2TheMedal Installation Time: Less than 1 Hour

        Great Sound, Iffy install

        I put these exhaust on about 3 weeks ago and I mostly love how they sound. Let me just say you CAN NOT install these without a lift (I tried). You need to be able to pull the pipe down at a 90 degree angle in order to slide it out. So I had it installed at a shop, but watched for the entire install, it honeslty didn't take too long, easily under 2 hours. Also for some odd reason one of the pipes was about an inch shorter than the other. I called Magnaflow and mentioned it and was told that it's normal (why???). So the guy ended up putting one pipe all the way into the fitting and the other had to be pulled out about 3/4 of an inch in order for the exhaust to be symetrical coming out the back. Other than that, it works like a charm. The start up is nice and loud with a nice rumble to it. Someone mentioned 2,000 rpm being loud, its true, but I love it. And also, to my surprise, if you go over 2,000 rpm by a little in 6th gear, it's just a little bit louder than the stock exhaust. Sometimes its deafening and other times its rather tame, it's almost like it has mood swings. Also one pipe hangs about a half inch lower than the other, but it still has plenty of clearance for speedbumps and what not. Overall solid exhaust, but I'm still figuring out if the $900+ is worth it. It's still very new to me, so just take this as what might happen and don't go in thinking that it's going to be a perfect install and look and sound like you've always dreamed. I still love the exhaust and I think whoever decides to buy them will too.

        Helpful (6)
      • June 09, 2014

        5 2013 GT - stratman1969 Installation Time: Less than 1 Hour

        Love The Rumble

        I investigated several exhaust systems, and kept coming back to the Magna-flow competition. From the growl, just after starting the Coyote, to the exhaust not, just before each gear change, the sound is incredible. With a hydraulic lift, the installation went flawlessly, and took less than an hour. After that, I spent hours just riding around with a smile on my face.

        Helpful (7)

      Questions & Answers (6 answers)

      5 Top Rated Questions

      What's the fitting difference between the 11-12 and 13-14 gt, I see most systems are compatible with 11-14 year range

      • The Magnaflow Competition Cat-Back Exhaust will still bolt onto the 11-12 models however the 13-14 models bumpers are tucked in more which will make the tips not stick out as far on the 11-12 models.

      Helpful (1)

      I like the magnaflow competition and the mbrp race exhaust they both have very deep tones. But What is the deepest sounding exhaust system on the AM website for the 11-14 5.0 ?

      • We recommend the Borla ATAK:

      Helpful (0)

      Are race and competition exaust systems street legal?

      • Yes, both race and competition exhaust systems that we have on our site are street legal.

      Helpful (0)

      Will I have any problems combining this with stainless header and xpipe?

      • This The Magnaflow Competition Cat-Back Exhaust uses 3" piping with a 2.5" step down and is made to be a direct bolt on to the factory Mid-Pipe without any extra modifications required. By using a different mid-pipe, we would recommend checking the piping diameter on the mid-pipe and ensuring that it is routed like the factory exhaust.

      Helpful (0)

      Is there anyway to just purchase the catback portion? I already have the axlebacks but not the catback pipe portion.

      • Unfortunately, the portion between the mid pipe and axleback is not available separately.

      Helpful (0)
      Post Your Question
      1 More Question
      Will this required a tune? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Right muffler assembly
      • (1) Left muffler assembly
      • (1) Right tailpipe assembly
      • (1) Left tailpipe assembly
      • (2) clamps

      Tech Specs

      Cat-Back Exhaust Specifications
      Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
      Piping Size: 3" Tip Size: 4"
      Muffler Type: Straight-through Fitment: 2013-2014 GT Mustangs

      Will It Fit My Mustang

          Related Mustang Categories