Based on the 2014 Mustang GT, the Shelby GT boasts 430 horsepower, thanks to engine tuning, a new intake and exhaust, and other modifications. It also features Ford Racing suspension, upgraded brakes, and a new wheel and tire package. Naturally, racing stripes are also part of the package, along with a Shelby body kit that gives this Mustang a little more attitude.
Source: Motor Authority