Flowmaster Axle-Back Exhaust Kit American Thunder Stainless Steel Without Active Exhaust V6/EcoBoost 2015-2020

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  • Made In The USA!
  • Mild Exhaust Note
  • 409S Stainless Steel
  • 3" Mandrel Bent Tubing
MSRP $715.95
You save 19%

Flowmaster Stainless Steel American Thunder Axle-Back Exhaust Kit for 2015, 2016, 2017, 2018, 2019 and 2020 V6 and EcoBoost Mustangs without the Factory Active Exhaust Option.

If you are looking for a simple solution to the nearly non-existent exhaust note on your 2015-2020 V6 or EcoBoost Mustang, then CJ Pony Parts has you covered! This Stainless Steel American Thunder Axle-Back Exhaust Kit from Flowmaster is simple to install and will give your V6 or EcoBoost a more aggressive exhaust note.

Flowmaster Stainless Steel American Thunder Axle-Back Exhaust Kit 817748 Benefits and Features:
- Constructed from 409S Stainless Steel
- Mandrel Bent 3” Tubing
- Black Powder-Coated Finish
- Polished 4” Double Wall Angle Cut Exhaust Tips
- Chambered Super 10 Muffler
- Dyno Tested to Achieve Maximum Performance
- Mild to Moderately Aggressive Exhaust Note
- Fits Fastback and Convertible
- Includes Hardware for Installation
- Made in the USA

With a 409S stainless steel construction and black powder-coated finish for added durability, this Flowmaster Stainless Steel American Thunder Axle-Back Exhaust Kit will look great and last on your Mustang for many miles down the road. This axle-back system provides a moderately aggressive exhaust note while providing all the performance increases you would expect from a Flowmaster exhaust. The 3” mandrel bent tailpipes are designed to bolt right up to your factory 2-1/4” piping to provide maximum performance. Made in the USA, this kit will include a pair of chambered Super 10 Series mufflers and beautifully polished 4” double wall angle cut exhaust tips that feature an embossed Flowmaster logo. It also includes all the necessary hardware for a simple installation.

Please Note: Installation requires cutting of the factory exhaust piping. Once the modifications have been made to the factory exhaust system, Installation is a simple bolt-in procedure.

*Will not fit 2019 EcoBoost Mustangs that are equipped with the Active Exhaust Option from the factory.

When you're looking for an exhaust for your 1964-2020 Mustang, every owner needs to check out Flowmaster's exhaust systems and mufflers. Flowmaster is a manufacturer of just about any part you need for your Mustang's exhaust, from full exhaust systems and exhaust kits to mufflers and accessories.

Order this Flowmaster 817748 Stainless Steel American Thunder Axle-Back Exhaust Kit for your 2015, 2016, 2017, 2018, 2019, or 2020 V6 or EcoBoost Mustang without the Factory Active Exhaust Option from CJ Pony Parts today!

Installation Difficulty


Intermediate skill is required for this installation.

Vehicle Fitment

This product will fit the following Mustang years:

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To fit a 2018 convertible model does the convertible bracing have to be PERMANENTLY removed? Or just removed to install the pipes and the re-installed. I do not want to permanently remove the bracing, but if it is just removed-pipes installed-reinstall.

Asked by: adf020
They would need to be permanently removed.
Answered by: rk cjpp
Date published: 2019-05-13

Will this exhaust fit my 2018 Mustang Ecoboost convertible or is 3" piping too large as there are braces underneath due to it being a convertible? Thanks

Asked by: Jimsrt
As long as it doesn't have active exhaust it will work if the convertible bracing is removed.
Answered by: rk cjpp
Date published: 2019-03-27

Will it be direct fit with Flow-master X pipe?

Asked by: Mohannad
Yes it will.
Answered by: rk cjpp
Date published: 2019-01-02
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