Right as some of you know i have been having problems with my K04 conversion being seriously under powered. To help find out what is going on i am taking it to QST to get it on the rollers to get a proper figure. Im stuck with my K04 as i do not want to get a bigger turbo at the moment. So i am thinking of getting some low comp pistons, but i am not sure weather to go for JE ones, of get some original second hand S3 pistons. Does anyone have any opinions. I am not sure how easily available second hand S3 pistons are? I know the normal 1.8t wrist pins are smaller but from what i understand they can just be changed when the new pistons are put in. My reason for this is so i can run S3 remap power. But i may be taking on more than i realise by swapping them. Cheers people.