I would like to change to ceramic brake pads. I am being asked what the diameter of my front brake rotor is. Does anyone know this? My vehicle is a 2005 Cayenne S with optional 20" wheels from the factory.
Thanks in advance.

 

Im doing the same. I was thinking about going with Hawk ceramic pads. I have 20 inch sport techno wheels as well. I think the rotors are 330 on the base models, 350 on the S and turbo, not sure though.

 

Here it is. If you look on the top of the brake caliper itself, there is either a 17 YR or 18 YR stamped on it. 17= 330 18=350. I found it on my front passenger side.

I went with Zimmerman rotors and Hawk Ceramics, I'll install them next week.

 

Awesome thanks for the info.