It depends on the kit you buy, but all of them I am familiar with use standard FLAPS (friendly local auto parts store) pads.
They are fairly split on whether you can buy off-the-shelf rotors or if you have to go back to the original vendor for those.
In the case of the Speedway Motors kit that I used, they provided a list of vehicle cross-references/part numbers for the replacement parts.
I know the CPP kit uses their special rotors.
