By the way, here is the X5M engine for comparison, with shroud in place. Unfortunately when I had an M I never took the shroud off to take pics, but I imagine that the two air ducts feed to airboxes up front and then into the turbo inlet. The intake is integrated into the shroud, which may be a simple snap on item. There is a K&N filter replacement set available for the M (not for the 50i), which means that the airboxes are likely easier to access and can be opened. We can probably get a member here to post pics of the M engine without the shroud. If not, I can get one at the dealership.
