Hi Guy's,
Sorry, my German writing is not so good, so I will do it in English (reading German is no problem for me 
)
I just purchased the MIVV Suono and must say, they sound great 
and rather loud. I have a certificate that claims they are legal......
Indeed, fitting is not optimal, but I managed to get them as I want them.
I also had trouble to connect the spring at the right site. It is very close to the exhaust pipe. The rubber cover of the spring is already burned and had to remove it.
