Hi Tom
I am not sure but aside from a newer type muffler you may be stuck with a loud exhaust. I would think a stack type would be a good noise reducer but you also should be careful not to strain the pipe or head by loading it down with weight. I would think if you could support it somehow it would surely help. I have a stack on my "everyday" 140 and it helps to blow the sound up but it is just pipe and very light so no added strain.
I know this is not much help but I wanted to say HI and give my .02. Good luck.
--Scot
I am not sure but aside from a newer type muffler you may be stuck with a loud exhaust. I would think a stack type would be a good noise reducer but you also should be careful not to strain the pipe or head by loading it down with weight. I would think if you could support it somehow it would surely help. I have a stack on my "everyday" 140 and it helps to blow the sound up but it is just pipe and very light so no added strain.
I know this is not much help but I wanted to say HI and give my .02. Good luck.
--Scot