Just installed my raceme ultra with exshaust only thing left is EGR probe. Went fine with 120 hp tune went to tune transmission and truck went in to diesel preheat and shut off. Sent ray @Double R Diesel a message and two seconds later my phone was ringing. Problem was I need to update race me to newest file (I thought it was). Ray told me what to do and it is fine now. Well IT IS FREAKING AWSOME'!!!!!!!!! Tried it on the 200 hp tune with everything to the max and the only thing better was prom night of my senior year. LOL. As a small business owner I understand customer service and Ray is the man. To care as much as he does not only for what his job is but for the customers he comes in contact with. I will be a Double R Diesel customer for life and will refer everyone I can to him.