I have a 2006 C2S with PCCBs. I like everything about them except mine squeal very loudly when I get caught in bumper to bumper traffic. When I am on a long drive at speed, no squeals but they make very loud noises at slow speeds. It can be annoying at times. Haven't received much help from the dealer other than to tell me it's the front rotors that's causing the noise.

 

My anecodatal comments on my GT3. 5k+ miles.

Extremely bitey for first several thousand miles. The grab made the car stop like nobody's business, but also made it jerky. I can't complain too much since that grabiness saved me from hitting a deer.

At first track event, got the green fade, but it went away. Brakes feel now like normal iron brakes.

Have developed a slight squeal. Otherwise all good.

 

ARG - I Hate You...