When I drive up to Delaware from down here in NC I want to get the best gass mileage that I can get so I was wondering if anybody out there could give me a good gas mileage map for my car? I have a Apexi Intake, Downpipe, and Peter Farell CB. The trip is about 500 miles each way and before I got the PFC I was getting around 20 mpg. I haven't made the trip yet with the PFC installed so does anybody know what I can expect from the stock maps as far as gas mileage?