Yeah, I've seen the video too and like people are mentioning, there's a lot of flaws to the video, especially if they think that since it doesn't make more peak hp for their car then it won't for yours. Maybe you won't make more peak hp with a cai, but you could very easily see hp gains throughout other parts of your power band. Let's say that a stock 3800 makes 100hp at 3000rpm (I don't know if it does, just saying), and then you add a cai and make 105hp now yet still only make 200hp at 5200rpm. Your car will be faster even though you can't brag about a peak hp gain.

Cai's are supporting mods. If you want a big gain from one mod, get boosted or use nitrous and be done.

 

When I swapped out my K&N kit to a Cold air inductions, my tune was off big time.Air flow through the MAF was quite abit more and my dyno guy could figure out what was wrong, forgot to tell him I changed it out from the last time on dyno and he said whole car needed a retune, We fiddled on the dyno and picked up another 5-6hp. I'll take any kinda hp increase I can, it all ads up.