what good is that gonna do for you?
Well, people in the US have been replacing their stock airboxes for cone filter setups for years. The BMW cone filter looks pretty nice; factory fit and finish, cold air ducted with a bit of a ram effect going on. Pop out the paper and replace it with a nice ITG foam filter and it would be pretty slick... probably even sounds nice and nasty* to boot!
*Nasty in a good