Stock Harley-Davidson exhaust systems can vary in terms of loudness depending on the specific model and year. Harley-Davidson motorcycles are known for their distinctive sound, often characterized by a deep, rumbling exhaust note. However, the sound level of a stock exhaust system is generally within legal limits and compliant with noise regulations in most regions.
Harley-Davidson takes into consideration various factors when designing their exhaust systems, including noise regulations, performance, and rider experience. As a result, stock exhaust systems are engineered to provide a balance between a satisfying sound and compliance with local noise regulations.
While stock exhaust systems can produce a noticeable and rich sound, they are typically not excessively loud. However, it's important to note that individual perception of sound can vary, and what may be considered loud by one person may not be the same for another.
Additionally, some Harley-Davidson models may have options for upgraded exhaust systems, such as the Screamin' Eagle performance line, which can provide a louder and more aggressive sound compared to the stock exhaust. However, it's important to ensure that any modifications comply with local noise regulations to avoid potential legal issues.
If you have specific concerns about the loudness of a stock Harley-Davidson exhaust for a particular model and year, it's recommended to consult the manufacturer or a Harley-Davidson dealer who can provide more precise information based on the specific motorcycle you are interested in.