famous Silentium silencer company, supplied many exhaust systems for Guzzi,
most notably the shark gill pipes for the V7 sport/750S/S3. I know that
these are still available, but I believe that the Silentium name was bought
out by someone else. I haven't got the Silentium silencers on my S3 as they're
too restrictive but would like to have a pair in case I want to put the
bike back to stock (probably never!). That looks curiously like a British
tax disc holder on the Le Mans (near rear indicator).