Yes, some cooling solution was on the schedule.
I replaced the brake fluid and simultaneously installed Stahlbus brake bleeder valves. From now on it will be much easier and faster to flush the brake fluid.
Then installed custom brake cooling on the rear and on the front also.
Here is the rear. I used the GT3 brake cooling plates which someone used on the front earlier. It fits perfectly on the wishbone.
I modified the dust plate a little to make way for the fresh air to the disc.