Hello, hope here are a few who have guessed, because this is actually not a tuning forum. But did I consider theoretically whether one could not increase the intake air by zb such a part here http://www.ebay.de/…/360414351368?… in the intake tract, and thus a performance increase could be achieved? Shouldn’t be a problem to clean the part. Maybe one could also consider stronger engines (>1kw), whereby I think that already this part the Wind speeds that would normally have to exceed in the intake tract? Would just like to start a discussion on this matter.