K&N Sport Air Filter for BMW E90 316 D 318 D 320 D 320D 2.0 DIESEL 2007-2012 24844231857 | eBay
BMW 318i E90 Stock Filter V K&N Filter - YouTube
Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2016-2019 BMW (750i, M550i xDrive, Alpina B7, 750i xDrive), 33-5086 : Automotive
Fitting K&N Air Filter to E90 320d - BMW 3-Series (E90 E92) Forum