go to cumminsforum.com. all the info you could ever want. smarty, H and S performance, and edge all have chips/programmers out for the 10s. If you really want your pickup to run good, you can delete the egr and dpf emissions and have a totally new pickup. if you are leasing it again, you probably would want to leave it as close to stock as possible. For smarty, you can do the s67 or the smarty jr. the s67 can shut the emissions systems off, no cel, and tons of power and adjustability, mine will do 210 horse. the smarty jr will do 100 horse, and you can leave your emissions intact or delete them. lots of people like the H and S, I dont have much experience with it, but I know its pricy. I just installed an edge race last week, which was supposed to shut emission systems off and it didnt change anything, the dash lit up like a christmas tree. PM me if you have any more questions, and I can get you set up with a programmer eventually. thanks and good luck on the 10, they are sweet pickups.
