Here is Harescrambles K&N filter, Mr. Maintenance, a great example why you NEED a pre filter setup.
http://pilotodyssey.com/prefilter3.htm
I wonder if anything has been getting past the filter?
Yup, didnt see that one coming did you, hey you know "the dirtier the filter gets the better it filters" K&N filters are good for ON-road applications or you better have a serious prefilter setup.
I stuck the camera right in the air box and started taking pictures here is the as found.
Here is the stuff he is collecting in the bottom of the air box.
