Need some opinion on AC Autotechnic CAI

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http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7986462970&category=38634&sspagename=WDVW

I was wondering if anyone bought this Cold air yet?? Does it perform well or is it okay because i was thinking about gettin one…need opinions