Has anyone done this? Quiet baffles in my V&H BSS were too loud. Started the bike with the new baffles, I could instantly tell the difference. V&H said 2-3 db for theres and Smartpartz said 6-12 so of course it wouldn't be as loud. Sound is ok, just a little different in some way. Smartpartz says no dyno necessary... though it may run slightly richer than it used to. How do you tell if its running richer! Pull the plugs and look at them! Anything else.... I guessing mostly, that such a small change should not affect anything else.