from my earlier post...

I did some testing at Phillip Island at the weekend, using brake temperature paint. The outer edge of the rotor is getting up to 600 degree c. This is too hot for these calipers and rotors. The Q4 is a difficult car to add brake cooling ducting to. Especially with the brackets that support the 166 caliper.

The bottom line is that I am going to have to add some brake cooling if I want the system to perform for more than 3 - 4 laps..

has anyone added brake ducting to their Q4 - can you please post some pictures and comments as guidance for others.

Thanks, jim..