Hi guys,
I'm after either one of the following locally:
http://www.hpashop.com/HPA-E9X-N55-H...er-e9x-n55.htm
http://www.burgertuning.com/N55_BMW_air_filter.html
I've read the foam filters are better than the paper-based K&N's so would be more partial to that.
Thanks!