You will need to set the 6.4 back to stock, then you need to buy a 95.00 unlock code for the 2012 and up tuning PN # 111005. Then you will get a 5 digit code e-mailed to you, when you go to enter the year make model of the new truck it will ask you for this code. Just enter than code and your tuning will be unlocked and you can load the tune and enjoy.