Wes:

So what did this do to the mileage? I looked at the other post, but did not see any hard numbers.

And what would this change do to those of us that have wide temp variations in the seasons? In mid January, it can be -10, and mid July, +99. I am curious as to how the tuned ECU program would deal with that? And I guess I am asking the same thing about humidity and altitude variations. Or does the car already auto comensate for those variables?

If I were to do this, it would be more for an increase in MPG, than for performance. If there is a 5-7 mpg difference with this tuning and the K&N filters I already purchased, then we are talking about a 20+% improvement in the mileage, which makes the payback for these modifications pretty fast and appealing, considering that 93 octaine here just went to $1.95 / gallon.

I just want to make sure that I don't do something that seems right, but is long term dumb.

Am I making sense, or just rambling?

Thanks.

Jim