I just measured my rear PCCB rotors on my 2011 Turbo S. The thickness came in at 28.10 and 28.05, as far as I can find they are within limits. Just wondering at what dimension on the pads do people tend to replace, my right rear outer as far as I could measure on the car is 4.00 mm. I think personally it might be time to replace.

Any info would be greatly appreciated

JD