Description
Enhance your 2011-2014 Ford Mustang GT and GT500 with the Roush Part Number 421127 axle-back exhaust system, engineered for superior sound and performance. Featuring an open-chambered muffler design, this system delivers a deep, aggressive exhaust note that sets your Mustang apart without the in-cockpit drone often associated with performance exhausts. The high-quality 304 stainless steel round tips, finished with a chrome flashing process and embossed with the iconic Roush logo, provide a sleek, polished look that complements your vehicle’s styling. This exhaust kit mounts directly to the factory points, ensuring a straightforward installation process with all necessary hardware included. The mufflers and inlet pipe, crafted from durable 409 stainless steel, are built for increased longevity and corrosion resistance, making this upgrade both functional and aesthetic. Whether you’re looking to boost horsepower, improve airflow, or simply enjoy an unmistakable roar, this exhaust system offers a balanced combination of performance and style. Suitable for both coupe and convertible models with manual or automatic transmissions, the Roush axle-back exhaust is an ideal upgrade for Mustang enthusiasts seeking an aggressive sound profile and a refined appearance. Its design ensures increased airflow, contributing to improved engine performance while maintaining a street-friendly noise level, free from excessive drone during cruising. This system embodies Roush’s commitment to quality, craftsmanship, and performance, making it a popular choice among Mustang owners aiming to personalize their ride with a distinctive exhaust note and durable construction.
Features:
- Open-chambered muffler design for aggressive sound and increased airflow
- High-quality 304 stainless steel round tips with chrome finish and embossed Roush logo
- Constructed with durable 409 stainless steel mufflers and inlet pipe for longevity
- Mounts directly to factory locations with included hardware for easy installation
- Designed for 2011-2014 Ford Mustang GT and GT500 models, including coupe and convertible
Fitment:
Ford Mustang GT 2011
Ford Mustang GT 2012
Ford Mustang GT 2013
Ford Mustang GT 2014
Ford Mustang Shelby GT500 2011
Ford Mustang Shelby GT500 2012




















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