I had the minimax on my 07.5 Cummins and loved it. I also had the trans tuner they offered and never had a problem with it. Not sure how it works with these new trucks though. H&S went under several years back I thought? I have to say they really helped me one time with my old truck. Dealer said my computer was out and wanted $3500 to replace it. I called H&S and they sent me one of their’s overnight at their cost for $800 and had in installed and dealer programmed for $250. $1050 is what it cost compared to $3500 for a refurbished computer. I liked their service.