Just got the Cortex Programer, (2950) cheapest place I found was XPDDiesel.com believe it or not! I immediately updated it via internet and for now just put in the "Quick Tune". Had good results, car is noticably quicker with better shifts. Want some suggestions for the advanced tune which I have not got into yet. Options supposed to be for rev and speed limiter, shift points and tranny line pressure. Anyone with experience with this tuner????