Flowmaster 99-04 Cobra American Thunder Cat-Back System 409S - Dual Rear Exit

Exhaust System Kit

American Thunder Cat Back Exhaust System

American Thunder Cat Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tailpipes/Super 40 Series Mufflers/3.0 in. Stainless Tips; 409 Stainless Steel;

This American Thunder cat-back exhaust system is specially designed for the 1999-2004 Ford Mustang Cobra models with the 4.6L engine. The exhaust system is constructed from 2.50-inch mandrel-bent stainless steel and bolts directly to the back of the factory catalytic converters. The inlet tubes flow into a pair of large cased Super 40 "shootout series" performance mufflers. The 2.50-inch tailpipes are all mandrel-bent, use the factory hanger locations for a quick and easy installation and the mandrel-bent tailpipes are finished off with a pair of highly polished 3.00-inch diameter 304 stainless steel tips. The system includes all necessary parts, hardware and easy to follow instructions and is covered by the Flowmaster Lifetime Limited Warranty.

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, Flowmasters 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. Flowmasters product line includes exhaust products for Performance Street, Muscle cars, Trucks, Street Rods, RV's, Motorhomes, and all types of race applications. With over 400 different muffler models, 370+ exhaust systems and numerous exhaust accessories available, Flowmaster offers you the choice of sound to fit your sound preference from wild to mild and of your specific vehicle needs. Call our experienced tech staff for live help and detailed information regarding your vehicles. With Ray still active and hands on with the R&D department in the development, not only of new exhaust products, but also with new technologies currently being tested in third and new R&D facility, the future looks to be very exciting indeed.