K+N replacement filters are made of resistant washable cotton material. Increased air flow for optimum power delivery. The long service life means the filter quickly pays for itself.
You may also be interested in the following product(s)
HifloAir filter HFA4916 Yamaha YZF R1 2002 to 2003
EmgoAirfilter Yamaha YZF R1 2002 to 2003