I've seen on the Gen 2 Sport Silencer there is the usual small Akrapovic bolt (shown in photo) to retain a DB Killer? On my K1300S you removed the bolt and the DB killer could be removed/put back in. On UK model Gen 2 bikes it does not look like a DB killer is fitted unless it is the complete internals of the pipe! Just curious, have I missed something or in other markets do they come fitted with DB Killers? Peter