K&N Aprilia Rs660 659Cc 21-23

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.

The state of California has determined that certain chemicals used in the manufacture of this product have been known to cause cancer and birth defects.

For more information visit: www.P65Warnings.ca.gov