My car is just a road car, I have Brembo HC discs on the front with ds 1.11 pads, rear K Tec black discs & ds2500 pads - I also had by calipers rebuilt & cleaned up and what a difference that made.
The above advice seemed to be also aimed at track cars, it stops superbly now - the ds 1.11 pads do have some squeal to them, but the stopping power does it for me!.