Description
Overview
The Flowmaster Outlaw Axle-back Exhaust System Kit is engineered specifically for the 2024-2026 Ford Mustang GT with the 5.0-liter V8 or the EcoBoost 2.3-liter engine equipped with the factory performance exhaust option. Built around Flowmaster’s aggressive Outlaw series mufflers, this catback-style axle-back setup transforms both the sound and the flow of your Mustang, delivering the unmistakable tone that serious enthusiasts search for when they shop for exhaust upgrades.
This is a purpose-built performance exhaust system that pairs proven muffler technology with premium construction. On the dyno, Flowmaster measured maximum gains of up to 17 horsepower and 17 lb-ft of torque at the rear wheels, so this car exhaust doesn’t just sound the part—it backs it up with real, measurable output.
Key Benefits
The Outlaw mufflers generate an aggressive exhaust tone that stands apart from softer factory or comparable Borla exhaust, Corsa exhaust, and MagnaFlow exhaust setups, while remaining a genuine bolt-on upgrade. Every exhaust pipe in the kit is fabricated from 3.00-inch mandrel-bent 409 stainless steel tubing to maximize exhaust flow and long-term durability, and the system finishes with quad 4.00-inch black ceramic coated tips featuring an embossed logo for a custom, purposeful look on this iconic platform.
- Outlaw series axle-back exhaust system with Outlaw-style mufflers for an aggressive sound level
- Up to 17 hp and 17 lb-ft measured at the rear wheels
- 3.00-inch mandrel-bent 409 stainless steel exhaust pipe tubing for flow and durability
- Quad 4.00-inch black ceramic coated tips with embossed tip logo
- Dual tail pipe configuration with black mufflers and silver pipe finish
- CARB (California) compliant — Emission Code 5
Installation & Fitment
This kit is designed for a straightforward, no-cut installation. It bolts to the factory hangers and uses the original mounting locations, so you can retain your OEM valve actuator (reuse OEM — no valve actuator is included). All necessary hardware is included to complete the job. The 6.50-inch overall length mufflers feature a center inlet and center outlet with a 3.00-inch outlet diameter, keeping the axle-back exhaust system tucked and tidy under the rear of the vehicle.
Fitment covers both the 5.0-liter GT and the 2.3-liter EcoBoost Mustang equipped with the factory performance exhaust option, and it works on both coupe and convertible body styles. Whether you’re replacing tired factory tubing or stepping up your Mustang’s presence, this Flowmaster kit delivers the performance exhaust experience enthusiasts want.
Please note the California Proposition 65 warning applies. Backed by Flowmaster’s Lifetime Limited Warranty.
