I did the mod on an extra set of can's I bought and Oh Hell Ya this is how a Ducati should sound.Not to loud but just enough to get someones attention and a nice snarly sound coming off the gas I love it although I don't know how the wife is going to take it she kind of had a little fit when I told her what I was up to she didn't want me to ruin the sound she liked it I said it would be the same just a little louder. I guess I'll find out tomorrow.It also didn't seem to afect the bike in any negative way started up and ran finebut I think I'll have them check to see how the fuel mixture is.