In fact the Laser turned out to be a 50 quite rare and they are a perfect combination.It passed its noise test at 78 db but some coplained of it beig a bit "barky",so I fitted a second silencer.I had problems with this and eventually bought a new onre from Laser which "silenced" them as well as the model,I had problems with the cowl and purchased on from Carbon copy,very pleased with the services.That arrived on Monday and is now fitted.