Cobalt Friction Performance Rotors
My stock front rotors were starting to look pretty used, with some minor surface cracking due to crazy track temperatures. I decided to relegate them to standby status and put some new fronts on at about 36,000 miles. Andie at Cobalt Friction Technologies, is a great source for some very high quality, very inexpensive shaped lumps of metal.

Which one is the old one?

Very high bling factor, i should roll these with no wheels.