Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily

Flowmaster Outlaw Axle-Back Exhaust (13-14 GT)

Flowmaster Outlaw Axle-Back Exhaust (13-14 GT)
$0.00
100+ Reviews 14 Answers
Market Price $527.99 You Save 12% ($62.04)
Our Price

$465.95

FREE Shipping

  • Item 18445

Will this fit your Vehicle?

In Stock Ships same business day.
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.
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

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

    Features, Video & Details

    • Super Aggressive Flowmaster Outlaw Sound
    • Durable 409 Stainless Steel Construction
    • 2.75" Mandrel-Bent Tubing
    • 4" Polished Stainless Steel Tips
    • Flowmaster Outlaw Mufflers
    • Fits 2013-2014 GT and Boss Mustangs

    Product Resources

    Customer Photos (31) Customer Reviews (100+) Questions (21) & Answers (14)

    Review & Installation Video

    Review & Install Video

    Hey I'm Justin with AmericanMuscle.com, and this is my brief look into the Flowmaster Outlaw series axle back, fitting all 2013 Mustang GTs, and GT500's. If you're looking for a system that will really allow your 5.0 or 5.8L to be heard, then this is it, Flowmaster calls this their most aggressive axle back available for the new V8's, thanks to the two Outlaw series straight through mufflers, that should really help uncork the exhaust flow. Like many other Flowmaster exhaust, the Outlaw series is constructed using durable 409 grade stainless steel, and does feature 2.5" mandrel bent tubing. The exhaust is also finished off in that sleek black finish, which is great at resisting corrosion. Finally, everything exits out these dual 4" tips embossed with that iconic Flowmaster logo. Installation on this axle back is very straightforward and should only take you about an hour in the driveway using basic hand tools. Now let's hear how Flowmaster's Outlaw series axle back sounds compared to our factory exhaust.

    Super Aggressive Flowmaster Sound. Give your Coyote powered Mustang that unmistakable Flowmaster sound with the Outlaw Series Axle-Back Exhaust System from AmericanMuscle. This system improves exhaust flow using Flowmaster's race-oriented style Outlaw mufflers for that super, aggressive exhaust note your high powered Pony deserves.

    Stainless Steel Construction. Constructed from durable 2.75" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties, the Flowmaster Outlaw Axle-back features two race-oriented mufflers with massive 4.0" diameter polished stainless steel tips for impressive muscle car looks and sound. As an added bonus the tips are embossed with the "Flowmaster" logo for true custom styling.

    Application. This Flowmaster Outlaw Series Axle-Back Exhaust System is designed to fit the 2013-2014 GT and BOSS Mustangs for both great looks and great sound. Reuses the factory clamps for installation.

    Fitment: 2013 2014 Details

    MPN# 817592

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

    What's in the Box
    • (2) Muffler assemblies
    Installation Info
    Tech Specs
    Axle-Back Exhaust Specifications
    Piping Material: 409 Stainless Steel Tip Material : Polished Stainless Steel
    Piping Size: 2.75" Tip Size: 4.0"
    Muffler Type: Straight-through Fitment: 2013-2014 GT, BOSS
    Will it fit my Mustang?

      Customer Photos (31) Submit Your Photo

      View All 31 Photos

        Questions & Answers (21)

        5 Top Rated Questions

        What do I need to be able to put these on my 2014 V6?

        • Unfortunately, this Flowmaster Outlaw Series Axle-Back Exhaust is specifically designed for use on 13-14 GT model Mustangs and would not fit properly on 13-14 V6 model Mustangs.

        Helpful (1)

        I have a 2010 v6mustang I know the piping is 2.5 with stock but can I get a bigger pipe as well so it fits the 2.75 cause these sound so amazing and I really want to run them

        • Yes you are able to fabricate the exhaust to work together if you do not mind doing a little custom work, however as a heads up these will not sound the same on your V6 as they do on a Mustang GT.

        Helpful (1)

        I currently have Pypes on my 2013 and one of the mounts have broke off the exhaust, so I'm looking for a new one. Does anybody know how the Outlaw stacks up against the Pype-Bomb's? Loudness? 2.5k rpm drone? And performance?

        My brother says he had these for his old car (08’ GT) and got a serious drone while at highway speeds, so much that people wouldn’t ride in the car if they knew it was getting on the highway. Are these exhausts any different from the ones that would go on at 08’ GT? Could they potentially not have the same drone at highway speeds?

        • Exhaust drones are possible with any aftermarket exhaust. Exhaust drone is primarily the result of sound waves traveling through the air and vibration that is transferred through a vehicle's frame, body and components. Different tips, mufflers, and exhaust pipe size can either create or get rid of exhaust drone. There is some drone associated with theFlowmaster Outlaw Axle-Back Exhaust for a 2013-14 GT, but overall due to the different body and design the drone between the 13-14 GTs and an 08 GT would not be the same. 

        Helpful (0)

        How much of a sound difference is there between the flowmaster outlaw axle back and the cat back?

        • The cat-back will have more of a complete exhaust tone when compared just an axle-back. You will also benefit from the cat-back more as all the pipes up to the cats will be replaced with stainless steel.

        Helpful (0)
        Post Your Question
        10 More Questions
        Will these fit on 2012? 1 answer
        Are they legal in California 1 answer
        Do this come with dual tip, so it can go with my GT500 valance ? 1 answer
        Hi. In the customer reviews there are a lot of comments about the droning sound at approx 2000 revs. Do you have any recommendations to prevent / limit this? I am keen to buy this product but cautious about the droning. 1 answer
        I am installing the Flowmaster axle back on my 2013 GT will this increase my horsepower 1 answer
        Will these bolt up to a pypes catback exhaust 3in tubing? I would like to replace my pypes axleback mufflers for something louder and I'm wondering if these will bolt right up or would I need some adjustment to be done? 1 answer
        Why are clamps not included in this kit? 1 answer
        I have a 2012 gt will it still fit because it says (13-14 gt)before i buy? 1 answer
        By any chance could this exhaust fit my 2014 v6 mustang? 1 answer
        Does this fit well with my mustang GT/CS 2014? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.8

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:0-$100

          • Loudness / Volume 4.790055 4.8
          • Exhaust Note 4.817679 4.8
          • Fit & Finish 4.751381 4.8
          • Bang For Your Buck 4.72067 4.7



          • 5/5

            Installation Time: Shop Install

            June 03, 2019

            Sounds great!

            Love the way my car sounds now, this is what I was looking for. I recommend others to buy them

            AdaGT3

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            March 22, 2019

            V8 Power

            This is loud and everyone knows whenever I have parked in the driveway, if you're looking for an exhaust that isn't breaking the bank but superior quality this is it!

            Juned

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            March 13, 2019

            Outlaw!

            Bought these for my 2014 GT and they do not disappoint ! Loud and sound fantastic when you let the horses out of the barn! I love them. A little droning @ 2200rpm but, I can live with it! Happy about my purchase!

            William

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 08, 2019

            Awesome

            Awesome sound especially during acceleration so worth the price

            Chris12harley

            Year: 2014 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            March 07, 2019

            EVERYTHING I HOPED FOR!!!

            I could not be happier with my purchase! It feels like a new car all over again!! I had Flowmaster 40 series but they left me wanting more. The Outlaws fixed that!!! The sound is nasty mean and the drone isn't near as bad as I expected!! It's loud but not too uncomfortably loud. I had a conversation with the passenger the whole way no problem! This is a steal of a deal for the price! I 1000 would recommend to mustang owners!!

            WalterB

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            February 26, 2019

            Perfect muscle car sound

            I was hoping to wake up the neighbors and the exhaust did just that.

            ColeO

            Year: 2013 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            February 18, 2019

            Amazing sound

            American Muscle said it was the loudest Flow Master system and it is. Love it.

            BrianH

            Year: 2014 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            February 12, 2019

            Couldn't be happier

            Easy to install and sounds absolutely brutal. My car finally sounds as mean as it looks.

            CodyB

            Year: 2014 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            February 06, 2019

            Flowmaster Outlaws

            It was an excellent cat back for my car definitely very loud with my set up.

            AdamS

            Year: 2014 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            January 18, 2019

            2014 gt exhaust

            Great sounding exhaust. It Isn’t as loud as everyone says. If you want it to be wake the neighbors loud then I would get the cat back with it. That by far is on a whole another level. But the exhaust looks good and sounds great.

            AshO

            Year: 2014 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            January 18, 2019

            Flowmaster Outlaw 5Star

            !!!!!!!!!!!Great product for great price!!!!!!!!!!

            EdgarT

            Year: 2013 Submodel: GT

            Helpful (2)

          • 5/5

            December 21, 2018

            So loud

            Running these with an offroad x pipe and no resonators. It is insanely loud but still a good sound

            cattwin

            Year: 2014 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            November 18, 2018

            What a purchase!

            I just installed them and I have to tell you no video do them justice, they are awesome, the car sounds so powerfull. If you own a mustang GT and don’t have the flowmaster exhausts installed you are missing out! Worth every penny!!

            KACO

            Year: 2013 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Less than 1 Hour

            November 06, 2018

            My Outlaw Exhaust

            Omg The best thing I have invested into , My 2013 GT was stock and I went on YouTube listen to all exhaust , I knew I did Not have a lot of money to put into the Exhaust. But when my son told me to go listen to the Flowmaster Outlaw he new I would Love the Sound. And he was Right. I Love the Sound . It’s unbelievable and sounds like a Beast. Every where I go every Muscle Car guy is just Staring and keep Staring , I LOVE THE SOUND OF MY 2013 GT. ❤️

            AngeliaM

            Year: 2013 Submodel: GT

            Helpful (6)

          • 5/5

            October 22, 2018

            So Worth It

            They Sound Soo Loud , I Love Them I Get Compliments Everywhere I Gooo....... Totally Recomend Them

            EdwinD

            Year: 2014 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Less than 1 Hour

            October 20, 2018

            great sound

            Love the deep growl. its loud but not disturbingly loud. and the crackle just makes it even more to love!.

            1JarvisNorman

            Year: 2014 Submodel: GT

            Helpful (5)

          • 4/5

            Installation Time: Less than 1 Hour

            August 27, 2018

            Great !

            The description the magazine describes these pipes are spot on. Fast delivery ! Good quality stuff !

            BrianK

            Year: 2014 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            August 02, 2018

            Awesome sounding!!

            These axle back's are awesome. I'm old school, I love me a loud exhaust with tons of drone. The exhaust note is perfect at 2K and above rpm.

            Coyote2014

            Year: 2014 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Afternoon

            July 21, 2018

            Great sound

            Very agreasive sound. Alot louder than I expected. There is some drone at 3k - 3.5k rpm if your doing 70-80 just drop it in 5th to avoid the drone. Overall I couldn't be happier

            NicholasS

            Year: 2014 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Less than 1 Hour

            July 19, 2018

            Great!

            I love them. They give off the loudness and tone I was looking for. There is a slight drone around 2000 rpms, but you get used to it.

            ShaneBeecham

            Year: 2014 Submodel: GT

            Helpful (7)

          Related Mustang Categories