I am looking to try and get better mileage. Therefore I thought first I would add a K&N air filter element. Afterwards, I may go with a cold air intake and so far have only investigated the K&N as well. I am curious, do these really give better mileage on these systems? I have used K&N filters before on my Blazer and Camaro and they seemed to do well, but they were older without all of the computer crap. If not those solutions, what would you all recommend? I ain't looking to spend hundreds either. To start anyhow.