I'm running my da50 with MTW75K that da sells. It´s the same for da100. It really performs well very quiet and good power balance. My engine performs very well at 3d revs and very good at top power swingin a 22x8 mejzlik at 7200 rpm. Idle setup is easy and stright away. Engine runs smooth with no coughs and transition is awesome. I really recommend it.