Check this out, I've been running it for over a year and it's worked great. I replaced the included filter though, the one they give is crap. It's not a true CAI, but it definitely gives better flow.
http://weapon-r.com/english/index.php?main_page=product_info&cPath=9_63_76&products_id=5326
it goes for about $100, never a cel problem
http://weapon-r.com/english/index.php?main_page=product_info&cPath=9_63_76&products_id=5326
it goes for about $100, never a cel problem