Any time. I bought the ProCal to 1) adjust the speedometer to different size tires, if necessary, and 2) turn off the TPMS, because I bought another year JK wheels, and didn't want to mess with getting new sensors...it does other stuff also, I just didn't use it for that. I think you can adjust the idle, for winching and such.That is an outstanding and generous offer. Thank you. I'll PM later.