I'm not connected to these guys, just thought I'd share since some folks aren't able to order the exhaust through their dealer...
Be careful and look at the different vehicle requirements for these two:
http://www.ebay.com/itm/BMW-2-Series...7a9dd9&vxp=mtr
http://www.ebay.com/itm/BMW-2-Series...220a27&vxp=mtr