Crumm
Fordoholic
any gains would be acquired over the Donaldson style conical filter which I'm currently using.
I think you will gain some decibel reduction. I am currently thinking about modifying my intake to draw from in front of the grill along with quieting down the exhaust a little. The spool of the turbo and the rumble of the exhaust is but on long trips it gets old. I do remember the extra noise when I put open air intake and straight exhaust on our X. Running around home I like to hear the whistle an rumble but when we hit the road for a few hours silence would be nice.