The thunderous roar of a motorcycle is unmistakable, but that same sound can be restricted by law. From state to state, the regulations on exhaust systems are a major factor in keeping the peace. In many places, mufflers must be installed and maintained in order to pass inspection and stay legal. This means no loud pipes or modified exhausts.  The laws around motorcycles are strict and often enforced with hefty fines. No one wants to hear a loud bike at all hours of the day, and these restrictions help protect citizens from excessive noise pollution.  By following these rules and regulations, riders can enjoy their machines without fear of repercussions from authorities. So let your ride be heard in moderation, lest you risk a hefty penalty for overdoing it.