It's not too bad. When cruising on the highway you can't even hear it. At high revs it gets a little loud but certainly tolerable. It's pretty smooth, not at all like that tin can sound. I'm very happy with it. I'm off this week so might try to get a few more vids.
2006 Vibe (base) - Platinum Silver, 5 spd, ABS, Power Package, Infinity Speakers, Dynomax muffler, Cosmo SR intake - SOLD