There is probably a "team" - not a "guy" - in charge of warranties (and it's likely they have a team for each model). The reason I mention that is because the guy you talked to may have given you an answer just to give an answer (I hate when people do that crap; is it so hard to say "Sir, I don't know, but let me find you the answer").
On the other hand though, you may have gotten the one of the good ones out of the team, I hope that answer about the intake is fact because I'd like to do it eventually; seems like all the intakes I've ever bought have stated clearly "this product voids warranty", or something like that.
My cousin is an engineer over there, I wonder if he can get me to the top of the warranty food chain... Dodge should have some sort of "enthusiast’s" answer guide (but I guess that's what www.ramforumz.com
More to follow...