I have an 2005 dodge with a 5.9, rebuilt automatic transmission, 4" exhaust, 6" lift on 37's. When i bought the truck it had an Edge EZ... pretty sure thats what caused 5 of my injectors to go bad and my transmission to fail. Anyway I am looking to tune for towing. I'm sure this topic has been previously discussed but any advice would be greatly appreciated.

 

I have been told that a edge ez is a pressure box.From what i have read the smarty jr is the way to go

 

I have not used Smarty but heard it's the way to go! I ran an Edge unit on mine for a while and it made her run a little warm!