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

77 Reviews
Our Price

$398.99

  • Item #18445
  • MPN #817592
  • Market Price $454.99
  • You Save 12% ($56.00)
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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
  • Includes two Flowmaster Outlaw mufflers
  • Fits 2013-2014 GT, and Boss
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 2014 GT, and BOSS Mustangs for both great looks and great sound. Reuses the stock factory clamps for installation.

Mustang 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 GT, BOSS and Shelby GT500
Fitment
  • Boss 302 - 13
  • GT - 13, 14

Most Helpful Reviews View All

Overall Rating 4.7/5 Write a Review
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

Read More
Helpful (7) (0)

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) (0)

Videos

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 View Full Transcript

Customer Photos (14) View All

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Q & A (5 Questions, 9 Answers) Ask a Question

Is this the same exact same part number as the one for the 2011-2012? It says out of stock on the 2013 gt. Also do they stick out more than the stock mufflers on the 2013? The picture online shows a 2013 under the 2011-2012 with these on it and it looks like they are sticking out way past the bumper. Thats why i was wondering if they were different length on the 2013 compared to the 2012.

Whitehorse Year: 2013 Model: GT

Question Resolved
Good Question (0) (0)
  • No, this isn't the same part number as the 2011-2012 Outlaws. The 2013 exhaust changed ever so slightly and Flowmaster created an updated version specifically for the 2013s that will fit very nicely in the bumper cutouts! Hope this helps!

    Helpful (1) (0)

    Best Answer

    LisaS Year: 1992 Model: GT

Show 2 more answers

Fitment Currently I have the Flowmaster American Thunder catback and I'm not entirely thrilled with the "loudness" will these mount up to my current pipes? Is it the loudest flowmaster option?

notrq Year: 2013 Model: GT

Question Resolved
Good Question (0) (0)
  • It's loud...no doubt about it. They mount up quickly, took me about 45 minutes total. These are actually too loud for me and I'm considering trading them for some Am. Thunders! LOL

    Helpful (0) (0)

    Shane1980 Year: 2013 Model: GT

Show 1 more answer

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

Question Resolved
Good Question (0) (0)
Show 3 more answers

Reviews (77) Write a Review

  • 5 Stars .77 77%
  • 4 Stars .17 17%
  • 3 Stars .05 5%
  • 2 Stars .01 1%
  • 1 Stars 0 0%
4.7

out of 5 stars

73 Customers Recommend this Product

Installation Time:Less than 1 Hour

Installation Cost:0-$100

  • Loudness / Volume: 4.701299 4.7/5
  • Exhaust Note: 4.714286 4.7/5
  • Fit & Finish: 4.74026 4.7/5
  • Bang For Your Buck: 4.64 4.6/5
Filter By Sort By
  • 5/5

    Quick easy install, great sound

    January 23, 2013

    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.

    Marky1

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

    Helpful (7) (0)

  • 5/5

    Great Sound, Great Looks, Great Price, Easy Install

    November 11, 2012

    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

    WOOW

    November 06, 2013

    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

    Not 17 anymore

    May 07, 2013

    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

    Flowmaster Outlaw

    March 22, 2013

    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.

    Dylan32AU

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

    Helpful (2) (0)

  • 5/5

    2013 GT

    November 09, 2012

    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

    Outstanding!!!

    May 01, 2014

    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

    Flowmaster Outlaws Rock!

    April 21, 2014

    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

    Nice rumble.

    March 21, 2013

    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.

    Mike12

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

    Helpful (2) (1)

  • 5/5

    Great exhaust

    February 18, 2014

    I have had these exhaust on for about 3 weeks on my 2014 GT. They sound great. However the other reviewers are right about the drone at 2000 rpm. It doesn't bother me, sounds like a true GT now.

    DFox

    Year: 2014 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4 Columbia, SC, USA

    Helpful (1) (1)

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