AEM, injen, Iceman, they're all tubes with air filters. any difference between them is gonna be pretty relative, they all do the same thing. I have an AEM, and i like it, it fits well, but I'm sure the others fit well, and I'm sure other people like the others. Get an ebay pipe and a K&N filter, exact same thing.

and btw, to whomever said the AEM CAI gets hot? what are you smokin? I've checked it many times after some pretty wild and long runs, and it's been extremely cool to the touch, even at the throttle body.