American Thunder Cat-Back Exhaust System 1999-2004 Ford Mustang Cobra With 4.6L Dohc Engine Aggressive To Moderate Sound Flowmaster

The Flowmaster American Thunder Exhaust System is designed to boost the exhaust note of vehicles that have become quiet and unenthused. It aims to restore the classic Flowmaster sound with a moderate-aggressive tone. The system is engineered for performance increases, featuring large-diameter mandrel-bent piping, high-flow mufflers, and minimal restriction. It is available in durable aluminized steel or premium stainless steel for corrosion resistance. Most systems are designed for a straightforward, bolt-on installation with little to no drilling or welding, including all necessary components like vehicle-specific tubing, mufflers, clamps, hangers, exhaust tips, and hardware.