S-Type 2.5-Inch T-304 Stainless Steel Cat-Back Exhaust System

The Borla S-Type Cat-Back Exhaust System is engineered for the 2005-2009 Ford Mustang GT 4.6L V8 and the 2007-2009 Mustang Shelby GT500 5.4L V8 Supercharged models (both Automatic and Manual Transmission, Coupe/Convertible). This system utilizes S-Type mufflers and a unique muffler/exhaust configuration to cancel high-frequency sound waves, delivering an aggressive "S-Type" sound without interior drone. Constructed from premium T-304 austenitic stainless steel with 2.5-inch mandrel-bent tubing, this cat-back system is designed for increased exhaust flow, contributing to significant power enhancements. It features a dual split rear exit with 4-inch round, polished, rolled-angle-cut tips for a bold appearance. The system is lighter than the factory original and bolts directly behind the factory H-pipe, requiring no cutting or welding for installation. BORLA guarantees the quality of this exhaust with their Million-Mile Warranty. Installation is rated as light to moderate mechanical skill, with an approximate time of 2 hours. Hardware included consists of four exhaust band clamps. AmericanMuscle recommends adding a 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit for improved strength, stability, and a cleaner installed appearance, especially for 2007 models. Note: This system is specifically designed for V8 models and will not fit V6 Mustangs. While the Borla system provides an aggressive sound, it is tuned to complement other aftermarket performance upgrades and aims to maximize overall output. Some user reviews indicate that a tuner may be required.