hmmm, wish this was available when I got mine, I've got my original PCM sitting in a closet gathering dust.
I really can't see any reason for putting it back in, in fact mine doesn't say Diablosport on it anywhere, it IS a Dodge PCM, it's just had it's crap program lock removed; it's not like DIablosport is making
PCM's in a back room
You are right, it does NOT carry the factory warranty, if your's is still in warranty, you might want to keep it.
However I've never had a PCM die, never heard of anyone else kill one either, even doing tunes on them...
As far as taking it in for service, I'm out of warranty anyway, so it's a moot point.
But I imagine they certainly could flash it back to a locked tune, so tell the buggers to leave it alone!
As for me, I'd never take mine to the dealer anyway... And the service guy I take my cars to is the one that suggested
Diablosport, so no worries there...
To your final point about what their devices can DO... their manual's lack displaying or describing any of the advanced tuning options, I've asked about it before; maybe they change too often to print that up, I'm still pretty new... I also think they are very different depending on the car you are hooked up to...
There are lots of video's on you tube that show all the options, I just wish their manuals did...
As for the difference between the two devices, my understanding is that the trinity is only if you want to collect a lot of engine data, it will even do that wile driving; the intune does not.
But I think you can do all the same tuning on both (but I'd let an expert confirm that).
I can say that I'm happy so far, and I know others that are as well.
Oh yea one more thing, anyone wanna buy a gently used 2015 Dodge Charger 3.6L PCM?