Description
Overview
The Flowmaster American Thunder Axle-back exhaust system is engineered specifically for the 2013-2014 Ford Mustang GT equipped with the 5.0L engine. Built for the driver who wants an unmistakable presence, this performance exhaust delivers an aggressive sound level outside the car while keeping a moderate interior tone that changes character across the rpm range. It’s a true bolt-on upgrade that transforms the attitude of your Mustang without a complicated install.
As part of Flowmaster’s respected American Thunder series, this exhaust system pairs a pair of Super 44 Series performance mufflers with 3.00-inch tailpipes to produce a deep, powerful note and free-flowing performance. The 3.00-inch mandrel-bent tubing helps maintain smooth flow, while the axle-back design makes it a straightforward addition to your S197-generation Mustang. When you shop for exhaust upgrades that combine sound, flow, and clean looks, this kit checks every box.
Key Benefits
This car exhaust is constructed from durable 409 stainless steel and finished with large 4.00-inch polished stainless steel tips for a refined, factory-plus appearance. The system uses the factory hanger locations, so it lines up cleanly and installs with the included parts and hardware. The black-finished pipes and bright polished tips give it a purposeful, aggressive stance under the rear bumper.
- Axle-back exhaust system engineered for the 13-14 Mustang GT 5.0L (2WD)
- Super 44 Series dual mufflers with 3.00-inch tailpipes for a deep, aggressive tone
- 3.00-inch mandrel-bent tubing built from 409 stainless steel for durability
- Large 4.00-inch polished stainless steel tips for a refined, upgraded look
- Bolts to factory hanger locations and includes all necessary installation hardware
- CARB (California) compliant and emissions-legal (Emission Code 5)
Sound & Performance
The Super 44 mufflers are the heart of this catback-style axle-back setup, tuned to give you that signature Flowmaster growl. Expect an aggressive exterior sound that lets everyone know a 5.0 is coming, balanced by a livable interior tone that stays comfortable when you’re cruising and opens up when you get on the throttle. This is a performance exhaust designed to sound serious without droning.
Fitment
This exhaust system fits 2013-2014 Ford Mustang GT models with the 5.0L engine, in both coupe and convertible body styles. Because it retains the factory hanger locations and comes complete with mounting hardware, installation is straightforward for a confident DIYer or your preferred shop. It is also CARB compliant, making it emissions-legal for street use.
The Flowmaster American Thunder axle-back is backed by the Flowmaster Lifetime Limited Warranty. If you’ve been searching for an exhaust pipe shop near me experience with a proven brand, this bolt-on kit delivers legendary Flowmaster sound, quality 409 stainless construction, and eye-catching polished tips for your Mustang GT.
