Of the non-vendor cai posts/threads i read, many came to this conclusion regarding CAI on dynos. Yes, some intakes will respond differently to air while moving, versus shop fan and its placement etc.
Misinformation on mods needs to stop on this forum.
"There is a dyno posted on this site for stock, cai and drop in filter. Then tune with stock intake, cai and drop in filter. Both situations drop in filter gained the same power as cai. 4whp. So best does not work since they all gain the same amount."
The CAIs i was liking were in ~$500 range, likely a Raptor tax to be added across the board. Price aside, if gain is negligible, i think the chance of dealer using your cai to dodge/blame drive-ability issue/etc (minor or not) makes this less desirable.
All this said im sure ill buy one with the tuner as i cant leave good things alone