I don't think we'll have to wait too long to see a magazine publish tests and dyno runs to see if V2 is better than the original CAI and what not. And when people buy and dyno their own setups, we'll know for sure.

But you guys are forgetting that the V2 has two pipes in one intake: each with different diameter and length.

AEM's explanation:

Now I don't see how sound waves would change the amount of air that exits out of the intake pipe but for one thing, when you have the same frequency sound wave at a phase one-half period earlier, you'll get cancellation effects. Or at the right phase, an amplification effect. Or interference and etc. So the part about sound frequencies sound like a marketing blitz unless if these intakes are acoustically precise.

My guess on the intake design is that it pulls in a lot of air albeit at a slow speed (the Si intake diameter is a whopping 4") but then it effectively reflects air around to create a supercharger-like denser air flow when air exits out of the smaller pipe (probably 2.5"). Now you can't just create an intake pipe that has a big opening with a filter (4") and narrow it down to 2.5" at the other end and expect big gains. That could cause a bottleneck in flow. You might be losing power by doing that. So what AEM probably did was create either a swirl effect to charge more air in than just straight flow (like what the Tornado was supposed to do) or some other effect that flows the air out fast and dense. But I never was very good at fluid dynamics so this is just an educated guess.

In any case, it's not just another pipe into the throttle body. It now has two and charges the air more (ramming effect I guess) for more power. At least that's what AEM is saying on their web site.

P.S. I'm dying to hear how this intake would sound like. If the varying sound frequencies phenomenon is true, who knows what it could sound like.