I've seen way, way, way, way too many absolutly filthy throttle body's and intake tracts from people that have been running K&N filters.
Maybe it's because there not dirty enough, maybe people don't clean or oil them right, I don't know, but I do know if it's that easy to screw up and get the kind of **** I've wiped up out of throttle bodys with my finger, pure GRIT, I don't want one.
My humble opinion..
