WHy buy new rotors if you don't need them?(Because they are so cheap, and it will save you from having the car sitting and waiting on parts) I like my Axxis ultimates on stock rotors, greatly improved braking, but they are a bit dirty on a white sedan You just bleed the hell out of the system and voila, all the old fluid is in a bottle, ready for apropriate disposal. A pressure bleeder would be nice to have, but I just have not gotten around to getting one.