Inconvenience with the R77-D is that there's no removable baffle. Here's the answer I got from Yoshi when I was looking into it before buying the R77.
"For your FZ8 the mufflers are identical in all aspects physically just “D” version has the dual tip. Sound wise the “D” will but a bit quieter due to the dual outlets and is untunable, where the single has a low volume insert that come in the kit that you can install to low the sound that comes out of the muffler"
Last edited by Speedo007; 12-17-2011 at 05:53 PM.