Thank you so much Andy! So how much would probably cost for recoding a standard card to a HRC one? I am actually trying to source a HRC kit and an expansion chamber along with the HRC card, but i didnt know the bike would run appalling with only HRC card derestriction. I was thinking to let it run with a HRC card first, then derestrict other parts later. I guess i will derestrct the complete package at the same time. Thanks a lot for reminding！