K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K&N's Million-Mile Limited Warranty.

Fitment:
Porsche Boxster Base 2005
Porsche Boxster Base 2006
Porsche Boxster Base 2007
Porsche Boxster Base 2008
Porsche Boxster Base 2009
Porsche Boxster Base 2010
Porsche Boxster Base 2011
Porsche Boxster Base 2012
Porsche Boxster Limited Edition 2008
Porsche Boxster RS 60 Spyder 2008
Porsche Boxster S 2004
Porsche Boxster S 2005
Porsche Boxster S 2006
Porsche Boxster S 2007
Porsche Boxster S 2008
Porsche Boxster S 2009
Porsche Boxster S 2010
Porsche Boxster S 2011
Porsche Boxster S 2012
Porsche Boxster S Black Edition 2012
Porsche Boxster S Limited Edition 2008
Porsche Boxster S Porsche Design 2 2009
Porsche Boxster S Special Edition 2004
Porsche Boxster Spyder 2011
Porsche Boxster Spyder 2012
Porsche Cayman Base 2007
Porsche Cayman Base 2008
Porsche Cayman Base 2009
Porsche Cayman Base 2010
Porsche Cayman Base 2011
Porsche Cayman Base 2012
Porsche Cayman R 2012
Porsche Cayman S 2006
Porsche Cayman S 2007
Porsche Cayman S 2008
Porsche Cayman S 2009
Porsche Cayman S 2010
Porsche Cayman S 2011
Porsche Cayman S 2012