Good re-useable aftermarket foam air filter?

[jeremy_283]

Whats a good re-useable aftermarket foam air filter?

 

[Blanca BusaLess]

K&N . Had one in every car and bike for long time.
Can't go wrong with them.

 

[jeremy_283]

Those let small particles pass through, I race motocross, seen it happen, they're not foam anyways, lol

 

[Professor]

Pipercross is the only foam I've seen for the Hayabusa.

 

[Blanca BusaLess]

A properly lubed K&N wont let particles pass thru but yes your right they are not foam.