i've heard of flowmaster, but i hear them mainly on domestics, wouldn't hurt to try! good luck!
i like this picture from that honda prelude on the site...
http://www.louscustomexhaust.com/Honda%20Prelude.html
oh yeah, speaking of exhaust, i found this nice article about exhaust noise!
http://www.team-integra.net/sections...?ArticleID=309