I think something just opened up in the engine.

Can definately feel a diff over a few weeks ago with the same (almost -1 degree diff) in ambient temp on the freeway.

Just noticed today, and over the weekend it felt just like new. Hmmm :D

what do you mean just opened up? more pull? faster? what do you attribute it to (ECU flip, etc)?

Highly scientific methodologies.

Such as, wow this car is really movin' in 5th on the freeway.

And wow, my rear tires break loose much easier ;)

Obviously I can't attribute it to anything, much less quantify it scientifically.

But I can say woooooooo hooooooooooooo! She feels faster ;) ;)