K&N Engineering SU-6509 KN Motorcycle Direct Fit Air Filters engine-pull-start-kits increasing the inlets to 2in

increasing the inlets to 2in and outlet to 3in for a 51-percent boost in flow straight out of the turbos

2008-2012 Husqvarna TXC 250

1980 Yamaha XS1100L Mid-Special

2012-2020 Yamaha WR450F

1995-1996 Honda CR250R

K&N Engineering SU-6509 KN Motorcycle Direct Fit Air Filters engine-pull-start-kits increasing the inlets to 2inK&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.