The AEM Intake is really nice and will give you a noticable difference. But many say that just a cheapo intake off eBay will do the same when combined with a K&N brand cone filter... just take off the shitty one that comes with the cheapo CAI and put the K&N one on there...

Despite what ppl say tho, I went with the genuine AEM intake, it should be arriving at my house today!