For about $315 I chipped my Powerstroke Excursion. It now runs at 305 HP and 620 lbs of torque. Thats the middle setting that I run everyday. The performance setting is obsurd and I haven't tried it. (325 HP and 655 lbs.) This is my third PSD with zero problems with the tranny. You can have your first year NonDuramax, it makes a cute little picture in my rear view mirror.