Shelby Extreme Duty Radiator - 07-11 Shelby GT500 Developed by Shelby, Revan Racing and C/R, the premier motor sport engineering company, these Shelby extreme duty cooling radiators can reduce engine and cylinder head temperatures by up to 50 degrees in spirited driving conditions. This newest design with work with 2010 and up GT500's and allow you to keep the cold air tube that comes on the stock cold air intake.