Using 45 mm hole saw I drilled DB-killers from pipes. The result of how the sound has changed is heard in this short video. And later made fastenings that DB-killers were removable, differently on long distance at monotonous driving it was loud. This can be done on any such motorcycle.
This is an atypical short video of my channel, but many asked, so I decided to post. Usually I have very meaningful videos;)