i love the bhaf i still have the silencer ring in my turbo cuz i cant get it out and it sounds amazing over the factory box and i noticed a slight power gain with it too fuel mileage went up to just my recomendation for the money well worth it

 

Oiled filters dirty up your Turbo vains? Not good talking from experance. Everyone one i know runs an ice box or a S&B. They love theirs i still have a stock box
(When it rains it POURS!)