What sort of MPG changes has anyone experienced with the different tuner settings. I'm seriously considering this route as a performance mod but would like to see some real world numbers concerning mileage.

 

I would imagine theyare worse.

With the performance upgrade, the feet tend to get a little heavier.

 

You have to wear helium filled socks to get better MPG

 

I'm on my third tank with the hi-perf tune and somehow, someway, my mileage is actually better. Leadfoot and all. I am trying really hard to drive as I usually do but I can't help mashing it at least once or twice a day to feel that firm 5300 RPM 1-2 shift. My computer is currently showing 15.9 MPG with 1/4 tank left in mixed driving. This is about 2 MPG better than usual. The previous two tanks were maybe 1 MPG better. My computer is .3-.4 on the optomistic side when checked with the calculator.

Overall, I don't think that the fuel savings is quite enough to offset the 20 cent difference in price between 87 and 93 octane, but it is alot more fun now. I don't feel like a slug anymore!