Jay, I am going to contact Samson on Teusday to see if there is an option or a way to achieve this. Maybe I am being picky. I like the sound of the Harley pipes I drilled out. Not too loud, nice rumble. I did not realize how loud the Samsons are. They don't bother me back and forth to work or on day rides, but pulling the trailer and on vaca for a week, they are a bit much. I just want to quiet them down a touch. Just a little louder than the Harley's. Wonder if there was a way to bond packing inside. It would'nt take much.