O2Rush KTM 50SX 09-

The O2Rush air Filter has been designed to provide the ultimate performance, without putting your motor at risk of dust and dirt.Made with a Single layer of open cell, polyurethane air Filter Foam with external corrugations for over 100% larger surface area. The Foam is over 14mm thick (more than double the effective Filter medium of some competitors), yet still remains free flowing. Coupled with our ‘soft-seal’ Technology, ensures no dirt will penetrate.Made in Australia