I needed an airbox for my R90/6 and found one that was from am R90S. The guy who sold it assured me it would fit on my engine. See the pictures below..these are of the right side where the airbox meets the transmission. The right side as you can see does not match the transmission. It does however match the engine. The left side matches perfectly with the engine and transmission. The guy that sold me the parts seemed to know his stuff and says I have it installed improperly....but I'm sorry guy, this is installed correctly and does not fit. Does anybody out there know what might be going on here?