K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle. K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance. What's Included: K&N Replacement Air Filter 99-05 BMW R1100S Vehicle Fitment: 1999-2005 BMW R1100S Base 1999 BMW R1100S ABS Base 2002 BMW R1100S ABS Base 2004-2005 BMW R1100S ABS Base 2002 BMW R1100S Boxer Cup Base 2003-2005 BMW R1100S Boxer Cup Replica Base 2000-2001 BMW R1100SA Base 2000-2000 BMW R1100SA SE Base
