I bought the car like this and the guy said he dint put an induction on as it would use a fair bit more fuel he said. when he had stage 2 done it slipped a few times the clutch the day he had it done then since then it has never slipped the clutch has done 15k miles on the stage 2 and is still not slipping but carnt imagine its going to last much longer so waying up a race clucth i also get the release bearing grind when car is cold which is annoying but he told me this would not affect anything do anyone no if thats true as the noise when cold does not sound nice at all