Ok, my dad is looking for something ,(other than superchips) see related thread , that is a programmer that will allow you to adjust for larger tires. Does anyone know of anything else that will do this? Superchips screwed up the computer on his truck. They are supposed to fix the computer. He has a 2007 Ram Megacab with 5.9L CTD. I'll have to take a couple of pics of it and post on here. It is the most beautiful truck I have ever seen. He calls it his yard ornament now. He is beyond mad now and just laughs. Today was a really nice warm day, not much wind. He asked me if I would pull him down the road so he could drive with the windows down? It is a Southern Comfort truck. It is decked to the max. Lift kit, 20 " wheels , custom paint job etc. It came this way. So he really wants something to adjust for the tires and that is somewhat undetectable. Any ideas?

 

A Smarty will do the tire size adjustment.

 

I second the Smarty, lots of options for various levels and also change tire size.