Bully GT Platinum Diesel Gauge and Tuner 40420, used only to unlock 13 and up Ram, works on all other vehicles such as Ram 06-12 Cummins, Duramax and several Ford Diesels, will not work to unlock Ram 13 and newer without a new Sd card.
had this tuner on my diesel truck two weeks then i made some modifications that this tuner does not support. works for Dodge, Chevy and Ford. has 4 pre installed tunes they are Stock, Tow, Performance, and Extreme. works great have no complaints about it.