[Dmitry at Pelican Parts]

Hey porschesampc!

wolds is right to point out that knowing the thickness will be a clear indicator on whether you need a new set or not. I've included a link to one of our many tech articles on the 997; which should help you out!

997 Brake Rotors - Porsche 911 Carrera Brake Disc Replacement - 996 (1998-2005) - 997 (2005-2012) - Pelican Parts Technical Article

Take care!

-Dmitry