MontBlanck(Jeff):

Thanks very much for your info. I think that everybody in this forum would appreciate more pictures once you start building or assembling your plane. Does the mini-tune pipe in YS 63 does it really is for gaining more power? what is the advantage of using tune pipe in the YS engines?, i ask this quiestion because i am going to buy one for my plane but i am doing this because alot of people install tuned pipes in their YS`s engines.

Thanks again!