A thousand quid and id be looking elsewhere! I had my Helix Stage 1 race clutch supplied and fitted by Statllers! Yes, still a hefty sum but at least I can enjoy my car to its fullest, and no worries in the back of my mind!! In my own personal experience, and I was at Stage 2 (ko3), it was only after I had the car lowered, Polybushed and 4 new tyres that the clutch started slipping! Something had to give! :-S