AFAIK the mandatory cat fitment only applies to new bikes at the point of manufacture. Once they're sold you are still allowed to modify. They tried to stop it a few years ago but backed off because of the economic damage it would do the the major aftermarket parts industry in Europe. If that situation remains the case you can bet they'll soon try again.
Same here, only ever had two claims in my life though, one in 1991 and one in 2006, both write offs. Both had full systems and straight through end cans; not a question was asked by the insurance in either instance & I got fair cops for both machines.
We have had this discussion numerous times on here. 99% of the time, even in an accident, it will not be an issue. But have an accident with either a serious injury or a fatality and all the vehicles will be impounded and looked over by both police and accident investigators and that's when the problems will start if the vehicle is not road legal.
It depends on the bike and what’s being added, whether ‘silencers’ or a full system. I just did a quick check on the configurator, looked at a Hypermotard V2 (the subject of this thread), a Panigale V4 and a Multi Pikes Peak. They all have silencer options which have homologation in various places, eg EU, California, Japan, Australia, but all the ‘full systems’ have this attached to them, including the ubiquitous ‘full’ Akrapovic for the Pikes Peak such as you used to have I believe.
