We had people with loud machines with no issue. I just wouldn't romp on it in congested areas.
The law states it can't be louder then stock so if it's stock your good unless there is a hole in it or you hollowed it out
Your best bet is to contact the Jericho state park for the limits and requirements
Jericho does have trail patrol with radar guns. Technically any modified exhaust or stock exhaust over 96 decibels could be ticketed.
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