Well, I'm finishing up the moby rat build.
I've got a polini 50 on it for the time while I try to track down a ring for my GR2 kit- but in the mean time I figured I would ask;
The Malossi gr2 kit has a larger exhaust port threading than my ninja pipe will fit to. I know their has to be a source for couplers for them, outside of paying someone to machine me one. I've searched all over mcmaster carr and didn't really come up with anything. Anyone know? Someone said malossi direct lists some kind of coupler, but I can't locate it. ???