XDrive 50i [Full Kit] 450 F15 2013 > 2018 N63B44. xDrive 50i [Full Kit] 450 F16 2014 > 2018 N63B44. BMC air filters are produced using a “Full Moulding” system that enables the characteristic red filter to be realized from a single mould with no welded joints thus avoiding easy breakage.
