why? what are you trying to achieve...brake envy or functionality? you are not going to get to much feedback on this thread. the brakes on this car are not a real weak point where you can upgrade and gain a significant performance advantage. the ms3's brake setup can be built upon to match or exceed aftermarket performance. i have brembo calipers on my track only car and i daily drive a 2008 ms3. to do an open track day i changed my stock pads to hawk hps, installed stoptech slotted rotors, castrol synthetic brake fluids, and goodridge steel lines and this car stops better than most sports cars i have driven.