If you take it to a dealer, you had better be specific and clear, because, I doubt whoever you talk to knows the ins and outs of every independent Dealership policy on repairs.
Your tune is at risk at any dealership, they may cover the tone ring, but you are likely to get the updated Software , and than your dash will be a lighted up with just about every MIL/CEL/Code associated with deleted components missing.
I would just continue to drive, and revisit what to do if problems develop, the diminished valve is NOT worth the truck value W/ new engine. Changing Engine for One that worthy IMO is NOT worth it. My 2019 Hemi cost $2.200.00 Les to operate in 6 years than My 2015 3.0 in 4.5 years of ownership...
There are only a few companies that have the license to use an app or software to bypass the secure Gateway module you'll have to buy actually a cable or a module to do it. All of the scan tools that can bypass the secure Gateway module cost thousands of dollars you're much better off buying a...