The enforcement of laws related to loud motorcycle exhaust varies depending on the jurisdiction and specific circumstances. In many places, there are regulations in place that restrict the noise levels produced by motorcycles, including Harley-Davidsons, to ensure they comply with local noise ordinances and safety standards.
Law enforcement officers are responsible for enforcing these regulations and may pull over motorcycles, including those with loud exhaust systems, if they believe they are in violation of noise regulations. However, it's important to note that not all loud motorcycles are in violation of the law, as some jurisdictions allow for a certain level of noise as long as it falls within the specified limits.
Harley-Davidson motorcycles, known for their distinctive V-twin engine sound, can sometimes be louder than other motorcycles due to their design. However, not all Harley-Davidson motorcycles have excessively loud exhaust systems, and modifications can be made to reduce the noise levels.
Ultimately, whether or not a law enforcement officer pulls over a motorcycle for a loud exhaust largely depends on their discretion and the specific circumstances. It's important for motorcycle riders to familiarize themselves with the noise regulations in their area and ensure their motorcycles comply with the applicable laws to avoid potential issues with law enforcement.