Would chipping/flashing my ECU *really* benefit me?

Pertums said:

17.6 mpg average before tune
19.0 mpg after tune (aka Predator)

+1.4mpg = ~ 8% increase in gas milage

@ current gas prices the 8% milage boost has easily made the Predator pay for itself over the past year and a half since purchasing it.

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But is that the premium fuel tune? If so the extra you are paying for premium fuel is eating up your savings from the better mileage.

jstreet0204 said:

But is that the premium fuel tune? If so the extra you are paying for premium fuel is eating up your savings from the better mileage.

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Yes it's the premium tune. I haven't played around with the factory style tune much since I prefer to grab the extra ponies with the adv timing, etc. I'll drive this tank of gas as low as I can and put on a regular gas tune and run it for a bunch of fillups and see how the milage increases from there.

To me the mpg isn't about the $$ as much as it is about getting further on a tank of gas. That's the difference between running out of gas on the highway and coasting in just in time for that next fillup