2007-2012 Shelby GT500 Mustang 650 hp Performance Upgrade Kit Shelby GT500 Mustang 2007-2012 650 HP Performance Upgrade Parts Don't get beat by the 2013-2014 Shelby GT500! Add more power to your 2007-2012 Shelby GT500 with JDM Engineering's Shelby GT500 650 HP Power Upgrade Package! This package includes the same... MSRP: Was: Now: $1,599.00
