the v2 is only a short ram intake
the aem cai produces the most noise, with the injen cai right behind it...
i've heard just about every type of intake for the rsx already.... injen sri, injen car, aem sri, aem v2, aem cai.......
as for the dyno numbers.... the shoot-out was done before the injen cai was available so its debatable......
as for installation, the injen cai is alot easier to install then the aem cai.... as for the v2, its a short ram... even i can install one of those lol