K&N replacement filter

for:
BMW 5er (F10/F11/F18) 520i 163/184 HP 09/2011-01/2017
BMW 5er (F10/F11/F18) 528i 245 HP 09/2011-01/2017
BMW X 1 (E84) 28iX 245 HP 03/2011-09/2015
BMW X 1 (E84) 20i/iX 184 HP 09/2011-09/2015
BMW Z 4 (E89) S30i 258 HP 05/2009-08/2011
BMW Z 4 (E89) S23i 204 HP 05/2009-08/2011
BMW Z 4 (E89) S20i 184 HP 09/2011-08/2016
BMW Z 4 (E89) S28i 245 HP 09/2011-08/2016
BMW Z 4 (E89) S18i 156 HP 03/2013-08/2016

K&N replacement air filters are the ideal combination of motorsport technology (40% more air passage than conventional filters) and economy (washable, reusable). KN replacement air filters are installed in the original air filter box and thus replace the paper filter. Maintenance only every 80,000 to 160,000 km.