Haven't been on here in a while as a result of not owning a diesel anymore, but I did a quick search and did not see this addressed. I still own a "new"(blue) V2 to tune my gas Denali as well as a few other trucks here and there and like to keep my software and firmware updated to the most current version available. I read a post from EFI Live that in light of the new EPA rules of no "off road only" tuning equipment, that newer updates for the US market would remove the ability to remove the ability to disable DPF, DOC, and EGR functionality. Does this mean that I should not update my V2 anymore if I would like to retain these features? Most of my customers/friend's vehicles that I tune want a tune solely for this reason and I would obviously like to keep this option, even if it means losing out on the ability to tune 2010+ Cummins. Thoughts?