These calipers came from a 997 GT3 Cup race car.  They are in good condition with no issues. 

These have all of their ceramic disks and they include the ceramic disk retainers.


The Porsche part numbers are

997.351.431.90 and 997.351.432.90

These fit the Porsche 997 cup car from 2006-2012.  I believe that they fit some street cars as well, but I do not know which.  They would make great race calipers for a race car as well.