I have a "new" 1991 Comp - had an American Skier last year. The Comp seems louder than it should, quite a bit louder than the Skier. It runs very well, so I don't think there is any kind of gasket leak.

I am thinking of two possible approaches - insulating the engine cover, and (possibly) investing in better mufflers. The mufflers seem to be new, but probably cheap. I am brand new to the site, and I did look around for this topic but found nothing. So, I would greatly appreciate any opinions and/or experiences from anyone.