I have the D&D loud baffle on mine. Guess what...it's pretty dang loud. My friend has the quiet baffle on his 08 SEUC and there's a big difference in the sound. It's far from quiet, but when you put the bikes side by side, all you hear is mine. The quiet baffle sounds real good, and like I said, it's still loud, but not quite so annoying so like mine is. Don't get me wrong...I don' t find my loud one to be annoying, but a few of my neighbors haven't been shy about commenting on them. My bike just plain sounds mean and powerful and I like it that way. In fact it sounds down right impressive. I did upgrade to the 8 speaker Hog Wired stereo, so I don't have any problems listening to my tunes, but then the same neighbors haven't been shy about letting me know that my stereo sounds like a traveling rock band going down the street.
My advice is that if you are not tolerant to the upper end of noise levels, go with the quiet baffle. You'll still make plenty of good ole Harley music going down the street, but probably a lot more tolerable by most.
Someone mentioned that the chrome was nicer on the D&D's. My exhaust pipes are beautifully chromed. The mufflers on the other hand are less than spectacular. The ghost pipe is tolerable, but the right side muffler came badly pitted or rough all over the surface area that you don't really see. I can feel it everytime I clean. It feels like a pipe that's been on there getting beat by rocks for 10 years and 100,000 miles. I'm hoping that this doesn't turn into a rusting problem down the road, but I just felt that the entire circumference of the muffler should have a nice smooth finish and that is certainly not the case. On the flip side, I got mine right around the time that they were having trouble with their chromer, and possibly this was among a group that was sent out just before they detected the problems and the chromer shut down for a while to get the contamination problem under control. Should I have sent it back for a replacement immediately? Probably. But you are kind of stuck if you don't want your bike sitting inoperable for a period of time waiting for a replacement.