I'm not quite sure on the pads, but I know that the carbon fiber discs are just starting to be used in road cars, pretty much just in Porsches (GT2), but are only really used in racing cars. This is because the discs need to be heated to a certain temperature before they are fully operable. I just don't know if this also applies to pads. It states "Street Performance Requires No Warm Up." I haven't really heard of them... John 4275 [Non-text portions of this message have been removed]