hheynow
the misanthrope
Since you brought it up. What is the problem with the k&n air filter?
The OBS airbox has been known to allow dirt to get past the filter. The K&N for the OBS has this inherent problem. More importantly, the K&N needs to be re-oiled periodically and doing it by hand is no way as precise as the factory did it. Too much oil on the filter is bad as is too little.