Honda CRF 300 Rally Pre Filter
Here's Funnelwebs info
The FunnelWeb Filter was designed and is manufactured by Infiltration Pty Ltd, an Australian Company with more than 40 years of experience in off road motorcycle foam air filtration within the organisation. Utilising the latest technologies in open cell foam 3D profiling, the pyramid profile effectively doubles the filters outside surface area without increasing its overall size and, compared with conventional foam air filters, have been designed to;
Features
The Foam Profile:
The Seal:
Impenetrable, robust foam enables a tight fit and guarantees no dirt or debris enters the airbox. The robustness of the seal also reduces the chance of shrinking, stretching, and tearing to allow for optimal fit over its lifetime.