Just bought the Diablo i3 platinum, installed the the basic 87 octane with firm shift and changed tire size 285/60/20, made a huge difference with minimal settings, no more lag at take off no more trans trying to figure out what gear to be in, much better performance can definitely feel the extra horsepower. I have read that some people have installed their stock setting back then made their changes is this something you need to do or can you just update your current settings without reverting back to stock first.