If you really want I can ask it from the owner, but i think he uses stock brakes with Ferodo DS2500 brake pads. since it is mostly a drag car, the brakes are needed only to slow down once.
if you want better brakes to e30 then look for here
http://www.300mm.de
Watever brakes you go with i suggest at least Ferodo DS2500 pads or similar.