K&N Replacement Air Filter YZF-R1 '02–'03 S3-Colour-GREEN/WHITE Can also be used on

Can also be used on ALL Ducati layshaft timing pulley nuts

Extends service time between filter cleanings

Knee EN1621-1 Level 2

25 rearview mirror thread

A low-profile toe box for easy shifting

K&N Replacement Air Filter YZF-R1 '02–'03 S3-Colour-GREEN/WHITE Can also be used onK&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. Features: Designed to provide increased horsepower and torque. Pleated media provides a large filtration area offering long service intervals. Multiple