EBC brakes have been discussed loads before, but for those who missed it here goes.
After loads of problems with Green Stuff pads EBC admitted to some owners they weren't really designed for cars of the weight of Evo's, but more suited to Saxo's, etc. EBC even refunded some owners or placed them with Red Stuff. I had them fitted to my old 4 and for normal driving they were an improvement on the OE pads, but just couldn't take the heat from high speed braking. They scorched my discs after braking from 100mph and braking after that was a nightmare. I had to get the discs skimmed in the end and the Green Stuff pads were binned. I've also seen Green Stuff pads reduced to nothing on the track in hardly any laps.
Hope this helps,
Dave