Was just looking at exhaust options the 'ol interwebs and I read a description of a Vance and Hines full system that said the new round can systems have a "Qui-Tech" baffle that is supposedly quieter by 6db than the standard race baffle. I'm thinking it's probably similar to what Yosh did with thier Zyclone cans vs. the race cans (race being straight through and the quieter one having offset entrance and exit).  Just curious...i thought all the V&H round cans were the same.  Anybody know for sure?  The main V&H site doesn't list them.  Bikebandit sells the Qui-tech baffle replacement kit, but shows no pitcures.