I dunno but if you discover something, please go on every boating website and pass it along. The loud exhaust issue is out of control on our lakes right now. On Shasta this past week there were dozens of boats with obscenely loud exhausts that could be heard for miles I'd bet. I think it's only a matter of time before the government steps in just like they are with motorcycles. Soon we'll have a South Park episode about boat owners similar to the Harley episode "braprapraprapraprap..."
'06 X-1, it's red and white.