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Flowmaster American Thunder Cat Back
Add Flowmaster's signature sound to your New Edge with this 1999-2004 Mustang GT American Thunder cat back! With easy fit in mind, these American Thunder systems from Flowmaster are mandrel-bent for maximum performance and flow! American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the Mustang enthusiast who wants their performance to be heard!
Flowmaster Quality
Flowmaster mufflers are proudly made to the highest quality, as shown in this American Thunder cat back. Constructed with 2.5", mandrel-bent tubing, this cat back flows much better than your factory exhaust. Flowmaster utilizes 409s Stainless steel to ensure long-lasting performance! Designed for an easy fit, these Mustang exhaust systems include all the necessary parts and hardware for easy installation.
Check out our YouTube channel for even more tech tips, installation videos, how-tos, and more. The best place to go for anything Mustang related!
Flowmaster - The Exhaust Technology Company
Flowmaster operates the only exhaust Research & Design facilities of its kind in the world, centered around the SuperFlow SF-7100 engine dynamometer complete with E.C.A. (engine cycle analysis) equipment and also SuperFlow chassis dyno's.
Through use of these dyno's, Flowmaster's engineering staff can track the complete engine cycle in millionths of a second and can obtain exact technical data of each degree of cam rotation, from induction to the tip of the exhaust system, while also showing the power numbers that really matter, the power numbers "to the ground."
Flowmaster also utilizes Spectrum Analyzers to fine "tune" the sound of each of the eleven different series of mufflers that Flowmaster currently offers, both for peak performance and just the right sound levels and tones. Flowmaster's dedication to quality is what makes them the exhaust industry leader for Latemodel Mustangs and SVT Lightnings!