:whs:Well this is what i understand as the problem with the K&N. It is not the K&N filter its self it is the K&N dropin which does not seal to the factory box very well. I ran a Summit racing cone filter which was 9" long by about 6" with a clamp on style 4" inlet. I did not see any dirt or dust in the intake tube. The Summit racing Filter is a K&N for about $20.00 less. It even came in the K&N box.