We have experienced cracking problems with the OEM front rotors on our Nissan GT-R when raced in the Redline Time Attack events. Solution? Make better rotors. Go to www.fontananissanracing.com/GTR_Technical_Corner.html for more photographs and information about these new, improved rotors that will solve your problem. Talk to Scott at Fontana Nissan to have your new rotors shipped today! 909 574-2288 www.fontananissanparts.com