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I've been googling and reading threads on various forums, for about 30 minutes, and it appears something so simple has a lot of different answers.  I used to know the answers but don't know any longer where I got that information.   

What size rotors are on a 2014 Cayenne GTS, Turbo, and Turbo S with PCCBs?  

When I was shopping for a Cayenne in 2013 I test drove a used GTS with the PCCBs; I ended up ordering a GTS with iron brakes; but I will never forget how much better the GTS with the big brakes stopped than my GTS does.  My rotors and pads are getting a bit worn, so instead of replacing them with new stock, I'd like to go to PCCB size floating rotors with new properly sized calipers and aluminum hats.   Cut some weight, increase the size and decrease the replacement cost when needed again. 

I'd also consider buying a full slightly used take off set of factory Cayenne PCCBs if someone had some for sale.  

I just bought a used 2104 991 Turbo S with ceramic brakes and ****, they stop well.  So that also got me thinking about it again. The lack of brake dust sure is a plus too.

If I did get the PCCBs I could always go to iron rotors if I ever wore them out, and have the large size calipers already. 

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