Hi Marcel.

I hope to see pictures of your progress, some people told me that the 46AX is pplenty of a motor for that plane. In mine i put the 55AX because iwas the one i had. But i suggest that you try the 46 first in order to avoid cutting the hole for the top of the cylinder on the 55AX as i hope to show you in the pictures of mine. I Put a Slimline Pitts Muffler, but since i'm using the Robart 654 Robo Strut, the control arm of this was knocking in one of the exhaust muffler, that i have to cut to have plenty of movement in the nose gear. Also the muffler that comes with the 55AX, if you decided to use it, you have cut the cowl because the part firts part will not fit inside the cowling.