Watch us take a bone stock 2008 Shelby GT500 Ford Mustang and add bolt-on mods to increase horsepower and torque. We add a cold air intake, Bama Performance custom tunes, upper supercharger pulley, lower harmonic balancer, off-road x-pipe, high-capacity heat exchanger and colder spark plugs for a huge increase in power to almost 600HP! Check out the dyno results and watch this GT500 go from mild to wild. This video will work for any 2007, 2008 or 2009 Shelby GT500 owners! less