Performance Upgrades
:help I'm looking for the best MPG setting to use for the Banks 6 Gun with the PDA. I have a 2009 GMC 2500HD. I pull a 24 foot enclosed trailer with a 3300 pound show car. Total weight is around 5500 pounds (estimated). What PDA setting, from 1 to 4, will give me the best MPG without hurting...