what is the ECT power doing when you have it on? i know its suppose to somehow, increase performance, but how?

 

I'll field this one. Changes the shift points if the accelerator is not completely floored. In other words, it will downshift one gear lower than in "norm" so the car will accelerate noticeably quicker. There is no difference in acceleration in pwr and norm if the accelerator is completely floored.

 

Don't forget it uses more fuel

-Robert