are you looking to tune or add performance? tuning will free up horsepower and give you better gas mileage, but if you're looking to add much more power AND adding MPG's, then bolt on's and THEN a tune is what you need.
---------- Post added at 10:42 PM ---------- Previous post was at 10:41 PM ----------
keep in mind that adding a tune will probably only increase your mpg's by 1 or 2 mpg, and it's 300 bucks. think about how long that 300 will take you to recover if you're already getting 33 mpg's....