2015-17 Mustang Flowmaster American Thunder Cat Back Exhaust 2.3 by Flowmaster

We no longer carry the 2015-17 Mustang Flowmaster American Thunder Cat Back Exhaust 2.3.
Check out 2015-2018 Mustang Catback Exhaust for an updated selection.
Details   |  Description   |  Reviews
  • 2015 Mustang Flowmaster Americ
2015 Mustang Flowmaster Americ

Bolt on power & aggressive sound with Flowmaster's 2015-2016 Mustang EcoBoost American Thunder Cat Back!

Item #FLO-817735
MPN# 817735

Everyday Low Price: $739.00

We no longer carry the 2015-17 Mustang Flowmaster American Thunder Cat Back Exhaust 2.3.
Check out 2015-2018 Mustang Catback Exhaust for an updated selection.

Made in the USA

Product Description

Flowmaster Performance
Flowmaster has created another high quality kit that produces aggressive exterior sound with a moderate interior sound. This 2015-2016 Mustang EcoBoost cat back exhaust kit will provide the sound along with the power you expect from Flowmaster products. This kit is constructed of 2.5" tubing that increases into dual 3" tubing for maximum flow. The 3" tubing then flows into a pair of high flow Outlaw series mufflers. These mufflers give you the best sound and performance you can ask for!

Flowmaster Quality
Flowmaster has constructed this 2015-2016 Mustang EcoBoost cat back exhaust from 409S stainless steel for long lasting quality and durability. The tubing and mufflers are topped off with a pair of 4" polished stainless steel tips that will look great coming from your rear valance.

Flowmaster considers this exhaust in the American Thunder series, but this kit includes Outlaw series mufflers.

- Fits 2015-2016 Mustang EcoBoost Fastback

Customer Photos (0)

Product Reviews (1)

5 star rating
5.0 out of 5 stars - based on 1 reviews
5 Stars   Great price, flowmaster quality, turbo beast sound!!
By on 5/28/2015
Got this for my ecoboost 6spd. This exhaust is just what I was looking for. It's loud when you get on it, not when you don't. No drone on the highway at all. It has a nice deep tone like the magnaflow at a more reasonable price. Yes it sounds like a 4 cylinder turbo beast, that's what I wanted because that's what I bought in the ecoboost. Reminds me of my old SRT-4. I still have the stock downpipe so you really have to get on it to get pops and crackles, so the cops will leave you alone if you don't run around town at 6000 rpm lol. Easy install, easy to align.

Yes, I would recommend this item to a friend!

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Vehicle Applications

Ford Mustang - 2015 (15) - 2016 (16) - 2017 (17)

About This Brand

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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