87-93 Mustang American Thunder System

The 87-93 Mustang American Thunder System from Flowmaster is the ultimate exhaust solution for third-generation Fox Body Mustang owners seeking to enhance both performance and sound. This system is designed for enthusiasts who want to elevate their driving experience while achieving significant gains in exhaust flow efficiency. Whether you're building a weekend warrior or a daily driver, the American Thunder System delivers the iconic Flowmaster tone that has defined American performance.

This complete exhaust assembly features Flowmaster's renowned Delta Flow muffler technology, engineered to reduce back pressure and maximize scavenging efficiency across the RPM range. The system incorporates mandrel-bent tubing to ensure a consistent diameter and minimize turbulence, allowing exhaust gases to exit smoothly without the restrictions of factory designs. The chambered muffler design produces the signature American Thunder growl—deeper and more authoritative than stock—while the aluminized steel construction ensures durability and resistance to corrosion.

Ideal for both performance enthusiasts and casual drivers, this exhaust system is designed to fit seamlessly within the original Fox Body chassis without clearance issues. Installation is straightforward for those familiar with basic exhaust work, typically requiring standard hand tools. The American Thunder System is compatible with 1987–1993 Ford Mustang models, making it a perfect upgrade for anyone looking to enhance their classic American muscle car.