The base has two holes 1

up to 89% reduction in critical cervical spine injuries

good corrosion protection

Formulated for use in injector/autolube systems but can be used as pre-mix

wind and rain in your motocross helmet

K&N - High-Flow OEM Air Filter (PL-3214) K-Type-Loading Ramps The base has two holesDesigned to provide increased performance Pleated media provides a large filtration area offering long service intervals Multi Layers of woven cotton gauze media offers excellent filtration Fits directly into OEM Airbox with application specific Sealing Bead to ensure a precise fit Fuel Management modifications are not normally required for increased performance Washable & reusable, pre oiled and ready to ride!