I will add the couple other things "I think" they would do or "have heard" they would do.
Balance crank and longer clutch actuator lever. I'm sure there are a couple I forgot and plenty I have never heard of. I think Arigato has pics of the pipe mounts filled with RTV. Also, I read it is a good idea to put a bead of RTV around the o-rings prior to mounting your pipe. If I remember more I will post them.