Originally Posted by CdnoilRAM
I believe you can go from the 5.7 to the R/T 5.7, but the 6.1L is a different engine with different parameters. You'll need to get a new tuner for the 6.1L for sure.
Yes, I understand that but you can buy one programmer, and load different tunes into each vehicle. Not having to buy a programer for each is what I meant