ye mate , Spiro quoted me $6k. No point stressing over what clutches are used, too late for that. All I know is that my stage 2 will be rated to 600rkw, if any problems ever arise, I'm just going to leave the car at CMS doorstep and say "not my problem" :D on a side note: Dear Mr billet input shaft maker, Could you please hurry up and finish the shaft already, the car has been at the workshop for 6 weeks and I am starting to lose my chit now, really stressing me out. Kind regards, Pissed off Customer