Nope, but I've never tried looking for a place myself. I was going to build a Yoshi box, in fact, I did build it, but it wasn't working and 3 different people (who knew what they were doing) tried to fault find it and no one could pick up the problem. I've not become around to rebuilding it, but I have the plans and the components are cheap. Then you'll only need a place that can dyno as you can tune it yourself (dead easy to do.)