its been mentioned in only 2 whole posts that I can find when searching the forum.

The other guys can access and license the CCM (via the OBDII) and tune , e.g. the NPP (performance exhaust flaps) open and close points - among many other things.

I know EFIlive noted a large diesel/cummings push over the last years, but i found it the best for my Ls1 camaro with custom OS etc. However moving up in cars to a C7, I have less to work with. Now being told (and seeing) the others tune the exhaust mode flaps is a bit annoying I have all this tech and cannot do this.... or can we?
I've not updated my EFI live for a good year