Hi, my name is Brad and i have a 2013 Cummins, as you can see from the thread title i am having the dreaded 200 mile countdown, and i have some concerns about deleting and tuning the truck currently. If i purchase an MM3 tuner along with all the deletes ETC, do i have to flash my ECM at a ram dealer to get rid of the countdown before i tune and flash it myself, or will the tuner simply take care of the countdown message and the CEL?