Doesn't seem too loud to me.
My Malibu with a 2.5 cat back to a magnaflow muffler (no res, in hindsight I wish I did) is much louder:
http://www.streetfire.net/video/2001...ck_2294693.htm
http://www.streetfire.net/video/2001...mh_2298544.htm
That's with a ported UIM & 65mm TB as well, although I'm not convinced that those contribute to noise aside from a whistle.