This American Thunder exhaust kit for your 2005-2010 Mustang GT has been engineered and dyno tested to improve acceleration, horsepower and torque, and increase fuel economy. Flowmaster uses mandrel-bent tubing that allows for superior gas flow. Aluminized steel provides corrosion resistant quality so your system will last. The American Thunder system comes with a two chamber muffler that will give you an aggressive sound. Everything you need for installation is included.
- 2005 2006 2007 2008 2009 2010 Ford Mustang GT/GT500/California Special/Cnvtbl (Incl.Conv.) 4.6L/5.4L