Oiled foam only for my bikes that go anywhere near
dirt or dust...
I use the OTR foam filter as it has more surface area than
the pipercross filter
I would use the Yamaha paper filter before a DNA or K&N...

If yer a black top rider go with the DNA or K&N type...





...

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...