Interesting article. Someone else also brought up a similar question regarding the possible advantages of upgrading to an aftermarket CAI.
I imagine with latest generations of RAMs the differences would be minimal compared to previous generations. That being said, I would also like to see before and after dyno runs with exhaust/cai's.
For me, mod'n my truck is a hobby, even though I may not see tremendous gains in hp/tq, customizing my truck is part of the fun.