I was wondering if anyone has
used one of these and what is the
quality and performance gains????

AFE Stage 2 Cold Air Intake

http://cgi.ebay.com/ebaymotors/AFE-Stage-2-Intake-1997-2004-Chevy-Corvette-C5-Z06-5-7_W0QQcmdZViewItemQQ_trksidZp1638Q2em118Q2el1247QQ categoryZ38634QQihZ010QQitemZ200221102944QQrdZ1QQs spagenameZWD1V

Looks like a Balckwing doesn't it?

If you cut out the shroud under it and add a scoop it'll take in real cold air! I have that Mod in a PDF, if you get the intake and want to do the Mod PM me your EMail address...