cerickson
fullpull108
- Joined
- Feb 17, 2011
- Messages
- 1,071
I am looking at the jr for my wifes 06 3500 megacab. Its all stock except the silverline 4 inch exhaust. Is the new smarty jr adjustable on the fly or do you have to stop and download new tunes to the truck. I am looking for an on the fly programmer, and the jr looks to be the safest bet for her truck. We are looking for a bump in power and some mpg increase. Its got a stock auto tranny will the jr burn it up if driven on the 3rd setting? The truck will be towing a 28 ft enclosed trailer with my pulling tractors all summer. So I don't want anything that will over fuel and spike my egts. Any help would be greatly appreciated