The bottom line is that you get what you pay for...in other words, if u get get an intake for a cheap price, your gonna get a cheap intake. I got tha AEM V2 intake on my JDM H22A and to me its tha best CAI on tha market. Worth every penny (Dual Chambered) Injen CAI are probably tha next best thing but be careful with thoze chepo Ebay intakes....
My WHIP->
http://www.cardomain.com/ride/499749