What is the maximum allowable loudness of exhaust in California?

In California, the maximum allowable loudness for motorcycle exhaust systems is regulated to ensure that noise pollution is kept to a minimum while also promoting safety for all road users. The legal limit is set at 88 decibels. This threshold aligns with the state's efforts to balance the enjoyment of riding with the need to minimize the impact of noise in residential and urban environments.

Maintaining the exhaust noise level at or below this limit is important not just for compliance with the law, but also for the overall community well-being, reducing disturbances and promoting respectful coexistence among residents and motorcyclists. Adhering to this regulation helps to promote a safer environment and reflects responsible riding behavior.