I'm running the stock intake and was wanting something extra - to improve mileage (if possible) and hear the turbo more. The truck is about to turn 10k. Would I be better off with a drop in filter or a whole new intake? And with the new intake a wet or dry one? I had a K&N air intake system on my 01 GM gasser - but this rig is a whole nother animal. Thanks for the help guys.