Dual Port vents both to the atmosphere & back into the air intake. Ports with sequential timing allow quieter operation during normal driving, while getting all the benefits of a vent-to-atmosphere BOV under race conditions.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2011	BMW	1 Series M	Base
2008-2013	BMW	135i	Base
2013	BMW	135is	Base
2007-2015	BMW	335i	Base
2009-2013	BMW	335i xDrive	Base
2011-2013	BMW	335is	Base
2007-2008	BMW	335xi	Base
2008-2010	BMW	535i	Base
2010	BMW	535i GT	Base
2011-2016	BMW	535i GT xDrive	Base
2009-2010	BMW	535i xDrive	Base
2011-2016	BMW	740i	Base
2011-2015	BMW	740Li	Base
2013-2015	BMW	740Li xDrive	Base
2020	BMW	X6	sDrive40i
2008-2010	BMW	X6	xDrive35i
2003-2005	BMW	Z4	3.0i
2006-2008	BMW	Z4	Coupe 3.0si
2006-2008	BMW	Z4	M Coupe
2006-2008	BMW	Z4	M Roadster
2006-2008	BMW	Z4	Roadster 3.0i
2006-2008	BMW	Z4	Roadster 3.0si
2009-2011	BMW	Z4	sDrive30i
2009-2016	BMW	Z4	sDrive35i
2011-2016	BMW	Z4	sDrive35is