Drilled and grooved front brakes
 

PowerStop® K891 - Audi A6 2002 1-Click Front Brake Kit
I put these on my car last week after experiencing lots of fade early on when I did a loop at the Nurburgring a couple weeks ago. This past Sunday I did a track day at a 7km road course Spa Francorchamp I did 3x 25 minute sessions and the brakes were much better, I will have to see how they do long term but I was impressed with how much of a difference they made over stock. I had a 30 minute cool down between sessions and but things were still pretty hot when starting the next session but I had good braking even at the end of the sessions.