Did you get all those parts out of customs? If so, Are you planning on doing a true exhaust comparison (one bike dyno'd w/ each exhaust)?
Looking for info on Gianelli 50 NRL and Jolly Moto 70 for a true 50cc.
Let us know when you get a chance to do an official Aprilia RS50 Exhaust Comparo.
I need to send you some pics of the Airsal 50 cylinder, I think you might like it as a test bed. True GP type exhaust port (Bridged W). It is just a little low for race use from the manufacturer but it can be raised.
Team Sidewinder -- CMRA Mini Endurance