I liked my Jardine pipe alot and felt it was perfect with the silencer insert installed. My only complaint is the straight through design give the exhaust a popping sound that is kind of evil. I made two cuts in the outlet of the insert and folded the flap forward. The bike sounds more like an engine and less like lots of little explosions. The volume dropped a little as well. If I change my mind I can fold the flap back into place or buy a new insert for 36$. The bike is a little mellower now.