'04 Ram 2500 Cummins with 35" Nittos. Not being very tech savvy I chose to install Program #2 (towing) to compensate for the oversized tires and for more torque while towing our 23' toy hualer. Installation was easy, including recalibration of the speedometer. Better throttle response and more power were immediately obvious and my fuel economy increased by 1.5-2 mpg. The truck also tows our trailer with much less effort. I am very satisfied with the Smarty Jr.
edge comp box for 2002 cummins
Installation is fairly easy, but Edge cheaped out on the wire tap piece from their earlier models. I did find a Posi lock type locally (I would recommend these to everyone for tapping the pump wire, much better connection and won't damage the pump wire). Attachment of the box itself using the supplied velcro seems kinda cheezy but it seems to be working okay. The Edge Comp itself is awesome. Biiiiig difference in power and torque from the Hypertech tuner I had on the truck. Very pleased.