Originally Posted by 57Hemi08
The best way is to buy a Diablo Predator Tuner and turn it off.
-------Not really the best way unless he wants to not have MDS at all...... Why spend allot of $ -> to just void your warranty and get worse MPG's....? Hitting the Tow Haul button is Free and does the same thing, but also allows you to put the truck back in MDS mode for the Highway
.... I hate the way the truck acts in town while in MDS. Out on the 2 lane / Highway at 55 to 67 MPH the MDS works....