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Flowmaster Outlaw Series Axle-Back Exhaust (15-17 V6)

Market Price $499.99 You Save 16% ($80.00)
Our Price

$419.99

FREE Shipping
  • Item 525581B
  • MPN# 817713

In Stock Ships same business day. Choose options to add to cart

Features, Video & Details

  • Super Aggressive Flowmaster Outlaw Sound
  • Durable 409 Stainless Steel Construction
  • 2.5" Mandrel-Bent Tubing
  • 4" Polished Stainless Steel Tips
  • Includes Two Flowmaster Outlaw Mufflers
  • Fits 2015-2017 V6 Mustangs

Review & Installation Video

Review & Install Video

Super Aggressive Flowmaster Sound. Give your V6 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 2.5" 16 gauge 409 stainless steel tubing for it's corrosion resistant properties, the Flowmaster Outlaw Axle-Back features (2) 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.

Cut & Clamp Installation. The installation of this Axle-Back Exhaust requires cutting and removing the stock muffler assemblies, and clamping the new muffler assemblies in place. Clamps and instructions are provided.

Application. This Flowmaster Outlaw Series Axle-Back exhaust system is designed to fit the 2015-2017 V6 Mustangs for both great looks and great sound.

Fitment: 2015 2016 2017 Details

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: 2.5" Tip Size: 4.0"
Muffler Type: Straight-through Fitment: 2015-2017 V6
Will it fit my Mustang?
  • V6 - 15, 16, 17

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Buy. This. Exhaust.

First off AM has the BEST service and shipping. Period. For those who believe that a turbo 4 can't sound deep and smooth I invite you to listen to this product in real life. Microphones cannot capture ...

Read More
Helpful (6)

5/5
I highly recommend

I was a little leery at first, afraid my mustang could sound like one of those little foreign cars with a whining exhaust. There simply is no sound that can replicate the rumble of a V8, BUT this was ...

Read More
Helpful (6)

Overall Rating 4.8 out of 5 stars
Read All 95 Reviews

Customer Photos (10) Submit Your Photo

View All 10 Photos

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39 Questions / 6 Answers

Ask a Question

is this product legal in the Rio Grande Valley ,Texas

reys

  • Unfortunately, we are not familiar with the local laws and regulations in your city. Please contact your local Department of Transportation, and/or Law Enforcement Agency.

    VincentV

Helpful (1)

I live in California. If i put this on, will i still pass smog? This is probably the only reason holding me back. I have a 2017 v6 mustang.

Daniel

  • The Flowmaster axle backs will pass smog testing however you will want to check your local laws on noise restraints to be safe.

    Ricky36

Helpful (1)

Is it absolutely necessary to cut and bolt on or can I get away with not cutting at all?

Mustapha08

  • Hello! Yes, the installation of this Axle-Back Exhaust requires cutting and removing the stock muffler assemblies, and clamping the new muffler assemblies in place. Because this exhaust starts where there is no section to unbolt you will have to cut and slip it into the existing piping coming out of the muffler.

    Ryan H

Helpful (1)

i dont know much about car, but i remove my muffler and thinking to get the Xpipe/Resonator Delete. can someone tell me if this work. thank you.

JasonV

  • The Flowmaster Outlaw Series Axle-Back Exhaust will work with most x pipe/resonator deletes, so long as they support a stock cat back exhaust.

    Rob D

Helpful (0)

I just installed bbk long tube ceramic headers on my 17' V6 mustang with shorty catted h pipe, and the flowmaster axle back. What type of tune will I need to get rid of the exhaust fumes smell from the car?

GerardoG

  • Unfortunately a tune wouldn't effect the exhaust smell you are experiencing. The smell is due to the high flow catalytic converters that come with the h-pipe physically filtering less than a standard catalytic converter.

    JeffAM

Helpful (0)

I have the exhaust put on and now whenever I hit around 1500-2500 rpm, the car sort of shakes and has a really loud almost drony sound, then once I pass on to 3000 rpm it sounds normal and like it should. Is this normal?

Rl57

  • The Flowmaster Outlaw Series Axle-Back Exhaust should not result in the vehicle shaking or making any strange noises, however depending on your entire exhaust set-up, it may drone. It would be difficult to know exactly what is occurring with the exhaust without seeing it in person, so we would recommend visiting your trusted installer to see what is going on.

    AMJEFF

Helpful (0)

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Customer Reviews (94) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.574468 4.6
  • Exhaust Note 4.670213 4.7
  • Fit & Finish 4.840425 4.8
  • Bang For Your Buck 4.765957 4.8



  • 5/5

    Installation Time: Shop Install

    April 08, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Buy. This. Exhaust.

    First off AM has the BEST service and shipping. Period. For those who believe that a turbo 4 can't sound deep and smooth I invite you to listen to this product in real life. Microphones cannot capture the low rpm rumble or the mid range howl. That's with no other mods. Don't wonder. Just buy it.

    GabrielB

    Year: 2015 Submodel: EcoBoost

    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    March 19, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    I highly recommend

    I was a little leery at first, afraid my mustang could sound like one of those little foreign cars with a whining exhaust. There simply is no sound that can replicate the rumble of a V8, BUT this was well worth the money. It completely changed the sound of the car....for the better. Inside, it has a very nice deep tone but not too loud at all. Actually, it only is loud when you really open it up and the turbo kicks in. At that point, honestly it sounds awesome. I could not be more pleased both with the sound and the looks. As usual, American Muscle shipped it out asap. I highly recommend. 2017 Mustang Ecoboost

    DavidT

    Year: 2017 Submodel: EcoBoost

    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    July 18, 2017

    Must have

    Changes stock sound completely, had it on for almost 4 months now, although I'm gonna add the X-pipe as well as the bbk shorty's

    JesseM

    Year: 2017 Submodel: V6

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    June 07, 2017

    This with an Xpipe/Resonator Delete is great

    I want to clarify I have this and a resonator delete (aka an Xpipe). On cold starts sounds great and is loud but when its warm idling its not annoying. Drones alittle on the highway but nothing really annoying. I cruise with the radio at like 10-15 and you dont notice it really. If youre only installing this there shouldnt be an drone. Makes the V6 sound great. Its no GT but its a great sound nonetheless.

    BrandonL

    Year: 2017 Submodel: V6

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    April 27, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    They rock!!!!

    Very good product and easy to install, videos don't do justice on how they sound and it's how the advertisement say is very loud when u get on but suttle under normal driving. Once broken in they are not as loud as the first time u get them on. Very satisfied.

    AbelA

    Year: 2015 Submodel: EcoBoost

    Helpful (3)

  • 4/5

    Installation Time: Less than 1 Hour

    April 25, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Good sounding exhaust!

    Shipping was fast. Had a local shop put it on for $80. Seems kind of quiet at first but after driving around for a week I feel like it got louder. Nice deep rumble at low RPM is exactly what I wanted. Noticed a little power gain too. If you're looking for a nice exhaust for cheap this is the way to go.

    VLAD702

    Year: 2017 Submodel: EcoBoost

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    May 30, 2017

    Loud

    If loud is what you are looking for. This is the product for you.

    JasonR

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    May 08, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Wake up

    The flowmaster outlaw axle back is really great quality, fast shipping from American muscle, and the ecoboost sounds amazing. It is loud but more refined then I expected it to be, 4,000 rpm is the sweet spot, awesome buy and definitely will come back to American muscle for more products. 100$ install cost

    IsaacM

    Year: 2017 Submodel: EcoBoost

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 29, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Awesome sound!

    Great sound and great quality. As always American Muscle was quick to deliver. Installing this axle back was simple, I installed it in my garage with the car backed up on ramps. Few days after purchasing this exhaust i a did a resonator delete Y-Pipe. Everyone compliments the sound of my car.

    Clay

    Year: 2017 Submodel: EcoBoost

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    April 27, 2017

    Perfect!!

    Bought this exhaust after doing alot of research on all my options. I couldn't be more pleased with this exhaust, it sounds perfect! You cant beat the price either! Only costed me $50 per side for the install. You will love this exhaust.

    Zman918

    Year: 2015 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 17, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Amazing!

    I am more than satisfied with my product, it overpasses my expectations by a lot. Easy install, fast shipping, reasonable price. What more can you ask for?

    OsvaldoC

    Year: 2016 Submodel: V6

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    March 28, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Sounds good

    I bought these for my 16 Ecoboost to give it a little more sound, and it sounds so good! It's pretty deep and quiet at normal cruising sounds. It's loud when you want it to be. Worth the money.

    Edson

    Year: 2016 Submodel: EcoBoost

    Helpful (2)

  • 4/5

    Installation Time: Less than 1 Hour

    March 24, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Outperformed my expectations

    Received my exhaust system right on time as expected and jumped right in. With a jack, two jackstands, a harbor freight saw, and two sockets, my new system was up and running in about 45minutes to an hour. Super simple install, and my god, they are loud, and they have a sweet spot around 4k rpms where it just snap, crackle, pops. Above 4k it still sounds great, but gets slightly raspy, but for my ecoboost it far and away exceeded my hopes and expectations. I am very satisfied with this mod!

    KevinT

    Year: 2015 Submodel: EcoBoost

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    March 15, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Great addition to my 2015 EcoBoost Mustang

    I wanted to improve the exhaust sound for my 2015 EcoBoost Mustang and the Flowmaster Axle-Back delivered. Installation instructions were easy to follow. The installation took me about 2 hours. I love the improvement in sound and tone of the exhaust.

    DavidV

    Year: 2015 Submodel: EcoBoost

    Helpful (2)

  • 5/5

    July 01, 2017

    Great quality

    Looks great. Haven't installed yet but overall happy with the quality of the product.

    Luis

    Year: 2016 Submodel: V6

    Helpful (1)

  • 3/5

    Installation Time: Less than 1 Hour

    June 29, 2017

    It's okay

    Was expecting it to be louder. Easy to install. Not sure if it's worth as much as it cost. Has a low baritone sound.

    Cristian

    Year: 2016 Submodel: V6

    Helpful (1)

  • 5/5

    June 22, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Dope

    Super throaty changed the whole style of the car! Easy install and sleek appearance.

    KingBlue

    Year: 2016 Submodel: EcoBoost

    Helpful (1)

  • 4/5

    Installation Time: Less than 1 Hour

    June 18, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    Great Choice

    The axle back exhaust system is amazing, definitely upgraded the sound of my ecoboost a very deep growl but not obnoxiously loud. Sounds great on a cold start and when you are on the gas but quiet at idol

    Colton

    Year: 2016 Submodel: EcoBoost

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 08, 2017

    Excellent Value

    Installation took all of 30 minutes, if that and the sound is great. Heard about a million complaints relating to drone prior to purchasing and they're, for the most part a bit exaggerated in my experience. The drone doesn't actually come on until 2k rpm and doesn't get real loud until 2,500. For reference with the stock 3.15 gear ratio's and Automatic Transmission which the vast majority of v6 owner's have this equate's to 80 mph and up. At 70 and below it is dead quiet and hums up until 80, if that, only slight drop in quality of life is a small increase in vibration which could in the long term rattle the materials in the cabin causing them to rattle sooner, but the sound more than makes up for it.

    GeorgeM

    Year: 2016 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 19, 2017

    Review from Flowmaster Outlaw Series Axle-Back Exhaust (15-17 EcoBoost)

    AMAZING

    I wasn't too sure at first but once installed. Definitely worth the gold!!!

    Roy

    Year: 2015 Submodel: EcoBoost

    Helpful (1)

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