Mine are quite quiet when cruising, and when getting "on it" its a nice low rumblebut not real loud. Probably just a little louder then the HD SE Touring pipes. I like them however. Sounds better when the bike is passing by,than when on the bike.

Enjoy the riding. Not quite as cold here in MN this morning, we had 49 degrees,the rain has moved out and it was a beautiful ride to work.