AEM vs. Cobb intake system questions
This thread thoroughly covers intakes and whether or not they're worth it. I read through it and the volume of useful information was invaluable. As for brand by brand comparisons, from what I've seen your best options are AEM, Cobb, or SPT. Only the AEM Cold Air and Cobb SF intakes are compatible with Cobb OTS Maps (according to Cobb) if that means anything to you. I am considering buying a Cobb SF intake and making my own air box so it has some function other than to hear the turbo spool up and BPV!