Nice write-up and cool pics of the Bimmeworld car.
I did brake ducting on my E92 335i after I went to R-comp tires. Those tires significantly increased the braking force and caused more heat generation, beyond what an upgraded pad/fluid setup could handle. I had no fade problems after I did the ducting. Here are pics:
https://www.e90post.com/forums/showt...2#post13142822
I used CF backing plates from Bimmerworld, they were very expensive but routed the airflow properly. I eventually had Hawk DTC-70 pads which were unusable on the street, I swapped them out at the track. There is no pad that works equally well on the street and track, just get a dedicated track set.
Best of luck with your setup. I think it'll work fine.
Charles