Carbotech XP8's are supposed to be awesome!
IV got ferodo DS2500's on mine (front rear ksports too). They've demolished the nurburgring and a handful of track days and are still perfect with LOADS of pad left.
Ran the same pad in the brembos with performance friction discs, were very very good, I only went to ksport because I changed the colour of my calipers on a trackday :twisted: red to burnt red lol.