well to be honest i didnt know that the SCT could turn off the traction control. As far as the performance and MPG gains i love mine. I didnt need all of the gauges from the edge programmer(not saying it wouldnt be nice, just that isnt a must have). With custom tune(which i have) i think it would help you out. you are going to have to wait till somebody knows more about the axel deal because i have no idea about that.
