Originally Posted by kindofblue
I don't know. The sound at idle is OK but when the throttle is blipped, it sounds like someone's passing gas
. I've had an 08 and a '10 GS and those mufflers sounded much better than this one.
I think the difference is that we are hearing an engine that spins up a lot faster than the previous boxer motors. Also an unloaded engine is going to sound a lot different than when you are riding. Have you really stood behind your bike and had someone rev it to 6k or more and listened to it? I know I haven't. Also, it seems that this engine was probably cold, which could also impact its sound.