Good news- they fit! There has been some question as to the ability to retrofit them so I hope this helps close the information gap.

Everything went together nicely; the back fit perfectly and the front only needed some minor spacing to compensate for the difference in pad position on the rotor (between 2-3mm).

Front 997.2 GT3/RS 380mm steel rotor test fit on 997.1 GT3RS PCCB calipers with 18" CCW C10 wheels and Toyo R888 tires



Rear 997.2 GT3/RS 350mm steel rotor test fit as above



Tech forgot to weigh before install. I am picking the car up Wednesday evening/Thursday morning so I hope to post part numbers, etc, at that time.

I am participating in the Northern Ohio Region BMW CCA Memorial Day HPDE at Mid Ohio, May 28-30, so I should have some reasonable on track experience to report.

 

Looks great! You may want to get a couple more lugs on there.... only kidding! haha! I am thing about doing the same soon. And you will love the Toyos. Lots of grip vs. stock (MPCS) with a very predictable breaking point. Thanks for sharing!

 

reviving an old thread. What are the part #'s for the rotors? Thanks.