Good morning cummins community. A year ago I bought my first diesel, 2016 2500 Laramie. It currently has 23,000 miles on it. As of lately I've been doing a lot of research on by the tuner and I'm trying to find the right one. Ray offers in missions compliant doing EGRless and calibrated power solutions offers emission. compliant tuning but no egrless. Any thoughts on the difference between the two tuners? Both of them use the MM3. Ray use the MM3 and calibrated power solutions uses the smarty MM3. One more question, has anybody had any issues with the dealer for warranty work if you load your Stock software and remove the components of your tuner