COBB BMW N54 high-flow filter — SKU 7B1109; direct drop-in replacement for the factory N54 airbox only. Not a universal BMW filter and not the N55 version.
Confirmed N54 E-chassis: 2007–2010 335i/335xi (including xDrive), 2011–2013 335is, 2008–2010 135i, 2008–2010 535i/535xi (including xDrive), and 2011 1 Series M. Engine and OEM airbox verification required. Exclude N55-engine cars and F-chassis applications.
Washable/reusable cotton filter. Per COBB this part is not emissions-related. Source: COBB confirmed applications.
