Hey everyone, I'm looking to improve my mileage I'm my 01 ram. It's a rcsb 2wd with a 318, 3.55 gears, and a 2/4 drop kit (the front at least, it's been too damn cold to do the rear). Currently, the truck has a 3x14 air cleaner, a set of shorty headers, stock y-pipe to a 2.5 in/3 out flowmaster...