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

90 Reviews
Our Price

$430.97

  • Item #18445
  • MPN# 817592

  • Market Price $487.00
  • You Save 12% ($56.03)
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Product Videos Customer Photos
Features
  • 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
Description
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

What's in the Box
  • (2) Muffler assemblies
Installation Info
Tech Specs
Axleback 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?
  • Boss 302 - 13
  • GT - 13, 14

Most Helpful Reviews

5/5

Top 1000 Contributor

Quick easy install, great sound

Super easy install, took about 40 mins. Sound is awesome. There is drone at 2k rpm's but who cares, turn the radio up. A 3.73 or 4.10 gear swap would probably fix this. I found using a small piece of 2x4 ...

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Helpful (7)

5/5
Great Sound, Great Looks, Great Price, Easy Install

These Flowmaster Outlaws are amazing. No drone at all driving at 75 in my 2013 GT. At idle, they are barely louder than stock but much deeper and rumbley. When I rev it up it sounds like rolling thunder. ...

Read More
Helpful (5)

Read All 90 Reviews
Overall Rating 4.7 out of 5 stars

Videos

Customer Photos (19) View All Photos

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5 Questions / 8 Answers

Ask a Question

Tune? While I plan on getting a tune in a few months my question is does this Axle-back exhaust require a tune?

blkstangGT2014 Year: 2014 Model: GT

  • No tune would be required for the installation of an axle-back. Just install and enjoy!

    Best Answer

    LisaS Year: 1992 Model: GT

    Good Answer (2) (0)

Show 3 more answers Question Resolved

Highway driving How loud are these while cruising?

StacksWarmen Year: 2011 Model: V6

  • They will be significantly louder than stock but definitely nothing too unbearable. It will sound like a nice mustang going down the highway, not anything too ridiculous.

    Best Answer

    03SVTsnake Year: 2003 Model: Cobra Top 250 Contributor

    Good Answer (1) (0)

Show 3 more answers Question Resolved

fitment to aftermarket x pipe new to exhausts but will this fit a 3 inch offroad x pipe? it says this is 2.75 inch so im curious if this will fit.

14ingotsilvergt Year: 2014 Model: GT

Answer This Question I need this answered (0) (0)

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Customer Reviews (90) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Less than 1 Hour

Installation Cost:0-$100

  • Loudness / Volume 4.733333 4.7
  • Exhaust Note 4.755556 4.8
  • Fit & Finish 4.755556 4.8
  • Bang For Your Buck 4.681818 4.7



  • 5/5

    Installation Time: Less than 1 Hour

    January 23, 2013

    Quick easy install, great sound

    Super easy install, took about 40 mins. Sound is awesome. There is drone at 2k rpm's but who cares, turn the radio up. A 3.73 or 4.10 gear swap would probably fix this. I found using a small piece of 2x4 wedged between the cat back exhaust pipe and panhard bar support brace will allow easier removal of the factory axle back. While pushing up on the exhaust tip, with a little muscle, slide the muffler towards the front of the car and it will drop out of the hanger mounts. Have fun and enjoy.

    Top 1000 Contributor

    Marky1

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4 Houston

    Helpful (7) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    November 11, 2012

    Great Sound, Great Looks, Great Price, Easy Install

    These Flowmaster Outlaws are amazing. No drone at all driving at 75 in my 2013 GT. At idle, they are barely louder than stock but much deeper and rumbley. When I rev it up it sounds like rolling thunder. Great smooth sound, not choppy. Around town getting through the gears it gets pretty loud, but as soon as you stop accelerating it quiets down again just as it should. Installation takes one wrench and about an hour, most of which is spent getting the bulky stock mufflers off. The 4 inch tips look great and really fill out the exhaust cutout in the bumper. I could not be more pleased with this product.

    blue5point0

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 St Charles, MO, USA

    Helpful (5) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    November 06, 2013

    WOOW

    Bought my 2014 Mustang GT on October 14, came home, and ordered the exhaust 5 hours after the purchase of my car. Heard many 5.0's with other exhausts such as SLP, BORLA and ROUSH and none of them have that burble that this axle back provides. With the new coyote motor, you miss out on the bubbly exhaust the 4.6 had. With this axle back, you get that burble back! So many people stop and ask me what I have done to the exhaust! Fit and finish was perfect! Easy 20 min install, especially because my car was brand new so all the hangers were still fresh and easy to take off! Thank you American Muscle for your continued service!

    Patrick14

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 5 Los Angeles, CA, USA

    Helpful (6) (1)

  • 3/5

    Installation Time: Afternoon

    May 07, 2013

    Not 17 anymore

    I had to be center of the road on this as the external exhaust note is great, but the internal drone is so horrible I have taken it off. If you are under the age of 25 you might like this, but as you get older (35) and have to talk to a client or passenger, forget it with this in the background. On the phone they can't hear you and if in the car you are yelling at each other just cruising at 60. I did contact flowmaster and by installing a resonator they state will remove all interior noise, but we will see. Also have to be careful as many don't realize but if you change one bolt from a factory ford you remove all of the warrantee from that point on. As for install, since the factory exhaust has little knobs at the end it is hard to get the leverage to just slip them out of the hangers. I ended up removing the hangers to get them off then reinstalling the hangers. 90% of the time was just removing the factory parts.

    Jersey1978

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Indianapolis, IN, USA

    Helpful (2) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    March 22, 2013

    Flowmaster Outlaw

    I put this exhaust on my 13 GT about a month ago, and I've been extremely pleased with it. I was a little hesitant when I watched some videos on it online due to the raspy and poppy sound the cameras gave. But for the money I thought what the heck, it's just an axle-back what should I expect. I was in for a surprise though, this exhaust will make your 5.0 sound like a straight up monster. Very deep at an idle, and SCREAMS when you want it to. The drone is there, but heck it's a sports car you should wanna hear it. Only reason I wouldn't give it 5 stars is because SOMETIMES when at high RPMS it shoots out the top and loses its tone. Other than that, it's perfect for an axle-back. Lots of bang for the buck.

    BigPony32

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Winfield, AL, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    November 09, 2012

    2013 GT

    this exhaust was the easiest I have ever installed I would recommend this product for anybody that likes a deep aggressive tone for their Mustang delivery time was great it took less than a week

    13GTnovicaine

    Year: 2013 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 Fayetteville, NC, USA

    Helpful (3) (1)

  • 5/5

    Installation Time: Afternoon

    May 01, 2014

    Outstanding!!!

    This exhaust is worth every penny!! Loud and aggressive, one bad thing is the drop in mpg due to the excessive revving I do with this exhaust I love it so much I can't stop listening to it

    Pv2Ballin

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    April 21, 2014

    Flowmaster Outlaws Rock!

    I bought these for my '14 Oxford White GT and they sound great. If you want something loud and aggressive these are the axlebacks for you!

    RustonWhiteGT

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Ruston, LA 71270, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 21, 2013

    Nice rumble.

    If you want to add a beefy aftermarket muscular rumble to your s197 then this is the way to go. It's easy to install and is inexpensive. This is my first mod for my "13 gt. sounds great and my wife and I installed it in less than an hour thanks to the detailed instructions provided in the box. GET DAT! Sounds great. And uhm yes it's pretty loud. I can't wait to wake the neighbors.

    Top 1000 Contributor

    Mike12

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1

    Helpful (2) (1)

  • 4/5

    Installation Time: Less than 1 Hour

    November 09, 2012

    great around town-avoid hiways

    I love the way my car sounds around town. I have 3.55 gears and a stick and these drone horribly over 60 mph!

    Walkerrt

    Year: 2013 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4 Indiana, USA

    Helpful (1) (0)

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