Description
Overview
The Flowmaster Outlaw Axle-back Exhaust System is custom designed for all 2015-2017 Ford Mustang GT 5.0L coupes and convertibles. Engineered around Flowmaster’s race-proven Outlaw series, this system transforms the note of your S550 Mustang GT with an aggressive exterior sound and a noticeable interior sound level that matches the muscle under the hood. It’s a purpose-built upgrade for drivers who want their 5.0L to sound as bold as it performs.
At the heart of the system is all stainless steel mandrel-bent 3.00-inch tubing feeding into a pair of Outlaw series mufflers. The mandrel-bent construction keeps flow smooth and consistent, while the dual Outlaw mufflers deliver the deep, unmistakable growl the series is known for. The kit finishes with a pair of large 4.00-inch black ceramic coated tips featuring an embossed logo, giving the rear of your Mustang an equally aggressive look to go hand in hand with the attitude the Outlaw mufflers project.
Key Benefits
This axle-back design bolts up to the factory hangers, making installation straightforward without the need to modify or cut into your existing exhaust routing. Every kit includes all the necessary parts, hardware, and instructions needed for an easy install, so you can get the sound and look you want with a manageable weekend project.
- Custom designed for 2015-2017 Ford Mustang GT 5.0L coupes and convertibles
- All stainless steel mandrel-bent 3.00-inch tubing for smooth, consistent flow
- Pair of race-proven Outlaw series mufflers for an aggressive exterior sound with a noticeable interior tone
- Dual 4.00-inch black ceramic coated tips with an embossed logo
- Uses factory hangers for a clean, direct fit
- CARB (California) compliant, Emission Code 5
- Covered by Flowmaster’s Lifetime Limited Warranty
Sound & Style
The Outlaw series is built for those who want maximum attitude. With the black-finished mufflers and silver mandrel-bent piping, this system pairs performance-minded construction with a menacing appearance. The 49.00-inch overall muffler length, center inlet, 3.00-inch center outlet, and dual tail pipe layout combine to produce the loud, aggressive character that defines the Outlaw name.
Fitment
This system fits all 2015-2017 Ford Mustang GT 5.0L coupes and convertibles. Because it mounts to the factory hangers, it retains the original exhaust routing while delivering the upgraded Outlaw sound and appearance. Please note this product carries a California Proposition 65 warning and is CARB (California) compliant.
Backed by a Lifetime Limited Warranty and supplied as a complete kit with mufflers included, the Flowmaster Outlaw Axle-back is a confident, all-in-one way to give your Mustang GT the aggressive voice and rear-end presence it deserves.











