I decided since you dont have too many options other than a BAK for the 2009 c50, that I was going to make my own. I got an idea as to what I wanted, made a template, and got to work. I am extremely pleased with the final outcome. I should get a little boost since the engine will breathe easier, although I do plan on tweaking my FI2000 now. I also LOVE the fact that it is ONE OF A KIND, and you can't just go out and by this. I thought I would post this in case someone else was thinking of doing anything similar.
RIDE HARD~RIDE OFTEN!