I replaced my stock rotors and pads yesterday on my '05 GTO with Hawk performance ceramic pads and DBA 4000 series slotted rotors. The install went normally and is as easy as changing out the pads and rotors on an f-body. However, there is a clicking noise now when the brake pedal is applied at speeds above 40 mph or so. It sort of sounds like a card in a bicycle wheel when you were a kid. I have done some research and most people say that it is simply the nature of slotted rotors and that the pad makes noise when going over the slots. I am hoping this problem will go away with pad break-in. The sound slows down with the rotor and it certainly seems like it must have something to do with the pad and the slots. I just thought I would have heard more complaints from people with this pad/rotor combination. Any opinions or thoughts on how to correct this problem or do I just have to live with it? Thanks.