2005-2010 Roush Mustang GT/GT500 Exhaust Kit - 421915

Product highlights for the 2005-2010 Roush Mustang GT/GT500 Exhaust Kit: Fits 2005-2010 Mustang GT (4.6L V8) & 2007-2010 Mustang GT500 (5.4L V8) ROUSH Extreme Axle-Back Exhaust System Designed for improved performance Straight-through resonator design provides very aggressive tone Piping is 2.5” in size and is made from mandrel-bent 409 aluminized stainless steel for consistent flow Tips are 4” in size and are constructed of chrome-flashed 304 aluminized stainless steel Utilizes OEM hangars and mounting points for easy installation Requires no cutting or welding Can be used with factory Ford rear valance Includes all necessary hardware and instructions Backed by ROUSH’s 3 Year Limited Warranty Part #421915 Completely redesigned for maximum performance, the ROUSH Performance Extreme Axle-Back Exhaust gives your 2005-2010 GT (4.6L V8) or 2007-2010 GT500 (5.4L V8) a much more aggressive growl than ever before! This ROUSH Extreme Axle-Back Exhaust is constructed of 409 aluminized sta