Axle-Back Exhaust for Mustang 5.0L GT 2015-17 | #421834 | Roush

Axle-Back Exhaust
for Ford Mustang 5.0L GT 2015-17

Manufactured by ROUSH® | #421834

Upgrade the performance and sound of your Mustang with the Roush Axle Back Exhaust System.

Features:

• High-flow mufflers designed by ROUSH with a single-tip configuration.
• More aggressive tone over stock.
• Constructed from durable, corrosion-resistant 304 stainless steel.
• Full mandrel bends for consistent internal diameter and smooth airflow.
• Includes 4″ Flash-chromed dual wall tips embossed with the ROUSH logo.

Tailored specifically for 2015-17 models, this system utilises top-grade T-304 stainless steel for exceptional durability and resistance to corrosion. The precision mandrel bends ensure an unobstructed exhaust flow by maintaining a uniform tube diameter, minimising backpressure for better engine efficiency.

Experience a significant enhancement in sound with the Roush high-flow mufflers. Designed to amplify the natural V8 engine note, the exhaust produces a deep, aggressive rumble at idle and a powerful roar during acceleration, encapsulating the true spirit of the Mustang.

Listen to the sound of this exhaust here.

Vehicle Applications:

• Ford Mustang S550 5.0L GT – 2015, 2016, 2017