kerscher rotor + 944T caliper + CB dropped spindle

[mabbo]

Hello guys,

I was reading the 'Which Porsche brake upgrade should I do?' article on the home page, and medhod one looks about the simplest.
A new Kerscher vented rotor, a 944 turbo caliper and CB dropped spindles.

Now, i seem to remember reading a while ago about this but cant find anything... do you use a rear 944T caliper because the Kerscher rotor is only 20mm thick.

Also, I know the general rule is that 944 turbo calipers require 16" wheels to fit, but, is the rear caliper smaller then the front so maybe a 15" wheel would fit? The reason I ask is because using the Kerscher rotor, you can keep 4x130 so I could keep my existing wheels for a while.

Thanks,
Mabbo