Termignoninoninoni on my Enduro 1200, very little difference (if any) in noise, all the silencing is in the big box underneath.
Yes… there is a thread somewhere explaining how to. If you’re handy with a grinder, it’s 5 minutes to open up the cat section. It then takes a while knocking the schit out of the cat, drilling the cat, cutting the cat, whichever you choose, then get a decent welder to weld it back up again.