I have a 66 plate with Revo stage 1 map, probably been on about 10 months now and my clutch started slipping 2 days ago. Just gone past 17000 miles too.
I'm going to upgrade to the Sachs clutch too.
May I ask you with the same issues when your clutch slips is it the revs that rise when accelerating but the car doesn't accelerate and then all of a sudden the revs catch and it accelerates like normal?
My clutch feels fine, same biting point, no slack when changing gear. Just the issue above.
Is the car ok to drive do you think? I'm driving gently, not accelerating hard and its not happened since but I don't want to cause any more damage by still using it. But I'm kinda stuck as I need a car and I think when I can get hold of the garage on Monday I'm not going to be able to get in until a few weeks! So I may have to continue using it