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.
My turbo sucks the oil right off the filter and makes a mess inside my compressor housing. FYI.