I'd stick with your nano drop in. Steer clear of the oiled filters!
Thats what I thought but the darn thing stops up at 2500 miles and I'm all highway, and it impossible to clean. I called the guy I bought it from and he said that he isn't selling them or any nano filters do to this...his words not mine and he is a forum member and Amsoil dealer.
I will try this K&N out, and check the intake tube for dirt or oil in a few weeks, if it shows anything but steller results I will take it back to Autozone for a refund.
I can hear the turbo a little better, guess that will help with mileage, it's getting a lot more air, just hope a lot of dirt is getting in there.