Planning a trip to Havasu next month and wondering about the noise restrictions? I have a stock 500 EFI with CMI wet headers no mufflers. Will I have a problem with the water cops with this setup? Its a long trip from Colorado and don't want to have my week ruined. Do I need to put a set of mufflers on? If so what brand do you recommend? I don't know what the noise level of my boat is now?