Description
Overview
The Flowmaster Outlaw Axle-back Exhaust System is built to unlock a bold, race-inspired voice for the 2013-2014 Ford Mustang GT 5.0L in both coupe and convertible body styles. Engineered as a direct axle-back upgrade, it replaces the restrictive factory rear section with a pair of race-proven Outlaw mufflers, delivering the aggressive exterior sound level Mustang owners crave while keeping the interior tone moderate enough for daily driving.
At the heart of the system are Flowmaster’s Outlaw series mufflers, tuned for maximum flow and an unmistakable, hard-hitting exhaust note. The 2.50-inch connections slip easily onto the stock mid-pipe, then the inlets rapidly expand to full 3.00-inch mandrel-bent tubing that feeds each Outlaw muffler. That mandrel-bent design preserves diameter through every bend, promoting smooth exhaust flow and strong performance. The complete kit is capped off with a pair of large 4.00-inch polished stainless steel tips that give your Mustang GT the finished, aggressive look to match its sound.
Key Benefits
This system is designed as a true bolt-on upgrade. It mounts to the factory hanger locations, making for a straightforward, hassle-free installation you can tackle at home with basic tools. Because it’s an axle-back configuration, you get a major transformation in tone and appearance without cutting or reworking your entire exhaust path.
- Purpose-built for 2013-2014 Ford Mustang GT 5.0L coupes and convertibles
- Dual race-proven Outlaw mufflers for an aggressive exterior sound with a moderate interior level
- 2.50-inch connections for an easy fit to the stock mid-pipe, expanding to full 3.00-inch mandrel-bent inlet tubing
- Dual tail pipe layout finished with large 4.00-inch polished stainless steel tips
- Supported from factory hanger locations for a simple, at-home installation
- CARB (California) compliant, Emission Code 5
Sound and Style
The Outlaw series is one of Flowmaster’s most aggressive lines, and this axle-back system brings that character to the Mustang platform. Outside, you get the deep, race-bred rumble the Outlaw name is known for; inside the cabin, the tone stays moderate so long highway pulls remain comfortable. The 4.00-inch polished stainless steel tips add the performance visual cue enthusiasts expect from Flowmaster.
Fitment and Configuration
This axle-back kit is application-specific for the 2013-2014 Mustang GT 5.0L in coupe and convertible forms. The kit includes the Outlaw mufflers (muffler part number: Kit Only) and features black pipe finish with polished stainless tips. Note that a heat shield is not included, and the system carries a California Proposition 65 warning while remaining CARB compliant.
Upgrade your Mustang GT with the flow, tone, and appearance of the Flowmaster Outlaw Axle-back Exhaust System — a race-proven design that installs at the factory hanger locations for a clean, confident result.
