2011-12 Ford Mustang Flowmaster American Thunder Axle-Back Exhaust System GT-GT-500 - S197 - 5.0L 5.4L by Flowmaster

Mustang Flowmaster American Thunder Axle-Back Exhaust System (11-12) 5.0L 5.4L


Details   |  Description   |  Videos   |  Customer Photos   |  Reviews
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496
Mustang Flowmaster American Thunder Axle-Back Exhaust System (11-12) 5.0L 5.4L
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496 - Picture of Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496 - Picture of Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496
  • Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496 - Picture of Flowmaster Mustang American Thunder Axle-Back Exhaust System (11-14) GT-GT-500 5.0L 5.4L 817496

Give your 11-14 Mustang S197 more power with a Flowmaster American Thunder axle-back exhaust system.

Item #FLO-817496
MPN# 817496

Everyday Low Price: $469.97

Ships from supplier by Wednesday, December 14

FREE SHIPPING!

Add to cart

Get it by Christmas! Order by December 16, 2016 @ 3pm CT

Benefits

  • Increased Horsepower & Fuel Economy
  • Aggressive Sound
  • Direct Bolt On Installation
  • 14lbs Lighter Than Stock Axle-Back!

Features

  • Stainless Steel Construction
  • Utilizes Factory Hanger Mounts
  • Easy, Clamp-On Design
  • Flowmaster Lifetime Warranty
  • Polished 4" Tips
  • Made in the USA

What's in the Box

  • (1) Flowmaster 3" Axle-Back Pair

Made in the USA

Product Description

Get yourself a Flomaster American Thunder axle back exhaust system for great sound and extreme performance for your 2011-12 Mustang. Designed for the serious enthusiast who really wants to get great sound from their Mustang, these mufflers will produce a deep & agressive exterior tone when on the throttle. You'll notice it inside as well letting you hear your engine roar. Stainless steel construction and easy installation makes this a top quality product that's ready to bolt on. Pick up a set today and feel the thunder!

As with all Flowmaster products, they are built in the USA and backed by their Lifetime warranty.


Flowmaster Exhaust Warranty - Click Here


Related Articles

  • How To Install Mustang Axle Back Exhaust (11-14)

    Tools Required Common hand tools Grinder Safety glasses Installation Instructions Step 1: To remove your stock axle backs, release the hanger from the rear insulated mount, and remove the clamp from the ball, and socket flange by removing the 13mm bolt Step 2: Slide the muffler forward, and of... more


  • Product Videos

    2011 5.0 Mustang Flowmaster American Thunder Axleback

    Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!


    Customer Photos (6)



    Product Reviews (4)


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    100%
    OF CUSTOMERS
    RECOMMEND THIS PRODUCT
    4 of 4 REVIEWS
    RECOMMEND THIS PRODUCT
    4 of 4 REVIEWS


    5 Stars   Horsepower Speaks loudly
    By on 6/22/2014
    Installed on my 2011 GT. Very good quality, very simple install in my driveway. Fits and looks better than stock. As for the sound...much, much louder than I anticipated! Some of that may be do to that I have an off road x-pipe on the car, that by it's self made the car louder. Sounds VERY VERY good when you get on it, very deep base, HP sound : ) But it's a little too loud inside the car. I installed 2 layers of carpet padding on the floor of the trunk, up the back seats and under the speaker area in the back window and that killed a lot of that loud, annoying drone enough so I can keep the mufflers on the car.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   AWESOME CHOICE
    By on 6/11/2015
    Installed the Flowmaster American Thunder axle-backs on my 2011 GT. Installation was straight forward based on clear instructions. The sound is much better than I could have imagined. Let's the Coyote engine make its presence known to all. Very satisfied with my choice.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   Great sound and easy install
    By on 7/8/2014
    I installed these in about an hour using a socket wrench, floor jack and jack stand. Very easy install and they sound and look GREAT on my GT500. I really like the way the tips are finished with the rolled edge as opposed to the OE look.

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?

    5 Stars   The classic Flowmaster sound we all loved - reborn!
    By on 6/18/2016
    Image uploaded by Jim S. Ive had this exhaust for a month now, and i couldnt be more happy with it. If you want the deep classic Mustang sound, this is the closest your going to get to the original 5.0 sound! I had considered so many different exhaust, but just could not find one that i liked that didnt have a lot of rasp/popping and definitely wanted something with some deep bass in it that you can hear blocks away! If that is what your after, or your looking for an exhaust that sounded like your foxbody used too, this is the one!

    As far as fit/install, i had zero problems. Follow the instructions and you'll have no issues (tip: remove the driver side bolts for the panhard bar and swing it out of the way to give you the clearance you need to remove / install the drivers' side muffler.) The black finish of the mufflers is well done and protects the muffler from the elements, and the 4" tips look mean sticking out of the back.compared to stock! Also the size & weight difference between the stock mufflers and these are huge.. and dont get me started on the sound.. no comparison!!

    All in all, you really have to hear this exhaust in person. No video or sound clip you can view can completely describe just how deep this exhaust is.. Yes, there is some drone at 2k, but it doesn't bother me a bit.. after all, sound is what an exhaust is for. If you like the Flowmaster sound, buy these! You wont regret how well they have retuned them for the Coyote engine! I guarantee you'll be smiling everytime you start it up and drive it, like i do!

    Yes, I would recommend this item to a friend!


    Was this review helpful to you?


    Vehicle Applications

    Ford Mustang - 2011 (11) - 2012 (12)


    About This Brand


    Flowmaster
    Flowmaster - The Exhaust Technology Company
    Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.

    Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."

    Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!

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