Thanks for the info guys! I talked to a guy at truckperformance.com and he told me that he thought they would work good together and make great gains but I dont know if he really knows what he is talking about, think hes just trying to sell a product. I already have the Hypertech Power Programer 3 and didnt notice as much gains as I would have liked. All I really noticed was the firmer shifting. So tell me more about this Nelson Performance, what all can they do for me and how much do they charge? I saw that they send a unit to you and you have to send it back, what would you do if you have to take it to your dealer? I know with the Hypertech that they recommend that you program it back to factory settings when you take it in so if they have to do something they dont mess it up or something like that.