Original equipment on the 2011-2014 Shelby GT500 coupe Fits 2005-2010 Mustang V6/GT and 2007-2014 Shelby GT500 Will fit 2011-2014 Mustang V6 when used with Ford Racing Dampers M-18000-A or M-18000-C and M-5300-N springs Will fit 2011-2014 Mustang GT when used with Ford Racing Dampers M-18000-A or M-18000-C and M-5300-K or M-5300-P springs. Increased durometer over base strut mount