Drop in air filters. Read before changing...important - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
![Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2006-2014 BMW (128i, 328i, 325i, 328i xDrive, 330i, 130i, 328xi), 33-2332 : Automotive Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2006-2014 BMW (128i, 328i, 325i, 328i xDrive, 330i, 130i, 328xi), 33-2332 : Automotive](https://m.media-amazon.com/images/I/81thyFESY0L.jpg)
Amazon.com: K&N Engine Air Filter: Increase Power & Acceleration, Washable, Premium, Replacement Car Air Filter: Compatible with 2006-2014 BMW (128i, 328i, 325i, 328i xDrive, 330i, 130i, 328xi), 33-2332 : Automotive
![33-2367 - K&N Performance Drop-In Air Filter - E90/E92 335i & 335xi, E82/E88 135i, E60 535i & 535xi | Turner Motorsport 33-2367 - K&N Performance Drop-In Air Filter - E90/E92 335i & 335xi, E82/E88 135i, E60 535i & 535xi | Turner Motorsport](https://3a663eb0fef48c6d2d60-a88f8ebfcdb877ad223e888bfcb7f7ec.ssl.cf1.rackcdn.com/17229_x800.webp)