Flowmaster American Thunder Exhaust For Mustang 79-04 (817574)

The Flowmaster American Thunder® Extreme Cat-back system is a race-inspired exhaust upgrade designed for high-performance Ford Mustangs with 4.6L or 5.0L engines. Constructed with mandrel-bent tubing, it features Super 44 series mufflers to deliver a super aggressive tone both inside and outside the vehicle. The system mounts behind the factory catalytic converters or most original style aftermarket H-pipes, and the turn-down tailpipes drop at the rear of the transmission. By eliminating full-length tailpipes, it maximizes sound output and provides extra clearance for wide tires and modified suspensions. This system enhances throttle response and power, making it ideal for enthusiasts seeking aggressive sound and performance upgrades.

Designed for 1986–2004 Ford Mustangs, including coupes and convertibles with 4.6L or 5.0L engines, this bolt-on cat-back system offers an easy installation with all necessary hardware included. It is suitable for street and performance use, providing a significant sound and performance boost for modified or stock vehicles. The system is engineered to improve exhaust flow and overall engine response, making it a popular choice for Mustang owners looking to maximize their vehicle's sound and power output without extensive modifications.