The new(er) Shelby GT 500 release (07-current) shebly performance that has teamed up with kenne bell and ford release the baddest mustang ever. There are two available options. Base package is a 600HP 5.4L Supercharged V8. New in 2009 is an upgraded package that comes with 725HP that comes with a Kenne Bell supercharger, replacing the Ford Racing unit. No other changes are made.
Beavis: Dude, did you see the new Shelby GT 500?
Beavis: The GT 500 will smoke any car on the road stock for stock. It comes with 725 HP.