Description
Overview
The Flowmaster Flow FX Axle-Back Exhaust System is engineered to wake up the 5.0L V8 in your late-model Mustang with a deeper, more aggressive exhaust note and clean, purposeful looks. Built specifically for 2013-2014 Ford Mustang GT coupes and convertibles, as well as 2013 Boss 302 models, this axle-back kit swaps the restrictive factory equipment for free-flowing dual tubing and compact, high-performance mufflers that deliver serious character without droning.
At the heart of the system is a pair of round Flow FX “straight-through” performance mufflers featuring large 3.00-inch cores. This design maximizes flow while producing the deep, moderate tone Flow FX is known for — muscular under throttle, yet civilized enough for daily driving. Dual 3.00-inch mandrel-bent stainless steel tubing keeps exhaust gases moving smoothly, helping your 5.0L breathe the way it was meant to.
Key Benefits
Every component is built to last and to look the part. The mufflers are constructed from bright 409S stainless steel for long-term durability and corrosion resistance, and the system is finished with large 4.50-inch black ceramic coated stainless steel tips that fill out the factory exhaust cutouts for an aggressive, integrated appearance. Embossed tip logos add a finished, factory-plus touch. Best of all, the Flow FX system is CARB (California) compliant, making it a smart choice for emissions-conscious enthusiasts.
- Dual 3.00-inch mandrel-bent stainless steel tubing for smooth, high flow
- Round Flow FX “straight-through” mufflers with large 3.00-inch cores for maximum performance
- Durable 409S stainless steel muffler construction
- Large 4.50-inch black ceramic coated stainless steel tips with embossed logo
- Deep, moderate sound level — aggressive without excessive drone
- CARB compliant and covered by a Lifetime Limited Warranty
Easy, Bolt-On Installation
Designed as a true bolt-on upgrade, this axle-back system utilizes the factory hanger locations, so there’s no cutting or fabrication required to get it in place. The kit includes all necessary parts, hardware, and detailed instructions, making it a straightforward install for a driveway afternoon. The center-inlet, center-outlet muffler layout with a 3.00-inch outlet diameter and 35.50-inch overall muffler length is matched to the Mustang platform for a clean, precise fit and dual tail pipe exit.
Fitment
This Flow FX Axle-Back Exhaust System is application-specific for 2013-2014 Ford Mustang GT coupes and convertibles and 2013 Boss 302 models equipped with the 5.0L engine. If you’re looking to add real presence and improved sound to your Mustang while retaining a hassle-free, factory-hanger installation, the Flowmaster Flow FX delivers the tone, flow, and finish enthusiasts want.
Note: This product carries a California Proposition 65 warning. A heat shield is not included with this system.
