I'm a newbie here. I got a 2011 1500 sport hemi 4dr 2wd. It is fast no doubt but i want max power..i know this motor can put out more than 390hp. I have installed a cold air kit. Duals. Leveling kit. I have seen here someone was getting a 66 hp jump with some tune? Everything i have seen is there is no tune kit for the 11. Any help and input would be greatly appreciated!