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Flowmaster Ford Mustang 2.3L/3.7L FlowFX Axle-Back Exhaust System 409S (2015-2020)

$84.00 (10%)
Part Number: 159 717789
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Introducing Flowmaster's new FlowFX Axle-back exhaust system for the 2015-2019 Ford Mustang with 2.3L EcoBoost and 3.7L V6 engines. This system is perfect if you are looking for an upgrade with deep refined exterior sound while maintaining a tame interior sound level with all of the performance benefits that you would expect from Flowmaster. New features include a pair of "straight-through" FlowFX mufflers with a large 3 core for maximum performance and a deep sound. The mufflers are constructed from bright 409S stainless steel and are finished off with 4 polished stainless steel exhaust tips embossed with the Flowmaster logo that compliment the factory cutouts in the rear valance. Designed for an easy installation, this system includes all necessary parts, hardware and detailed instructions. Requires cutting the factory exhaust system.


  • Flowmaster Reliability
  • Moderate Aggressive Sound
  • Dyno-Tuned for Maximum Performance
  • Bright 409S Stainless Steel Construction

CA Residents: Cancer and Reproductive Harm WARNING www.p65warnings.ca.gov.

Fitment & Features


Manufacturer: Flowmaster

Installation Information:

Level of Difficulty: Medium
Install Time: About 2 Hours
Tools Required: Basic Shop Tools

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020
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