Cayenne brake caliper's

[mbagge01]

I have a 2004 cayenne turbo with the option code 1K7 (rear disk brakes 17 inch red calipers)  I was wondering if the larger rotors from the cayenne turbo s work with the caliper I have or is there a bigger caliper on the rear for the larger rotors on the turbo S. The porsche parts catalog lists different part numbers for the calipers for the turbo and turbo S so I assume that the calipers are different sizes or did porsche just use different part numbers for the same caliper but on different vehicles. My question is whether I can just install the larger rotors onto my existing calipers or would the upgrade (like the E81 powerkit) require other parts to make it work on my car.