I play with the idea to install a MALOSSI Multivar. This is apparently practiced very often… 1.) Should such a change be entered in my type certificate ? ( according to wiki now registration certificate ? ). If yes, my HP insurance would get out if there were an expensive personal injury…. (which I do not want to hope of course ) 2.) I read a little about the varius. Found the link here very well. http://scooterxxl.de/rollertuning/variomatia K-vote.php How good is the SH125i set to stand-by and how much would the Mallossi get out? Of course, a performance diagram with original Varioi against Malossi Vario would be great, which I unfortunately did not find. So I am dependent on “personal experience “. If I get some more PS in the acceleration I would not be reluctant to play around. Especially if point 1.) does not cause any problems.