Originally Posted by ronny214
Why not just go with a high flow drop-in filter (un-oiled of course)? Much cheaper, used the stock setup, and I've read that you can still get some of that "woosh" noise everyone wants.
This. I got an HP AUTOWERK foam drop in a while back, and it has been great. Better air flow (however marginal) and the N55s just have that BOV sound by their nature, it even amplifies it to a small degree.