Originally Posted by
crookedview
Ordered my tune this weekend - one question, how does this affect gas mileage? I'm sure it depends on how you drive the car post-tune, but does the tune itself affect mileage positively/negatively?
With a tune and CAI, I have seen a few MPGs on the positive side, but when you install a sprint booster (electronically sends throttle signals with better response) you will probably lose a few MPGs because you are into the throttle pretty good even when you don't think you are because a stronger signal is getting there than how far your foot is pushed down.
I only use 93 from a reputable brand and I usually get nearly 30 on the highway and right around 20-21 in the city, and that is with some pretty aggressive driving and mods...