What can you do to avoid unnecessary noise?

You answered correctly. According to German traffic rules, avoiding unnecessary noise while driving is important for reducing noise pollution and respecting others. Keeping the engine at a low or moderate revolution level helps prevent loud engine noise. Additionally, not modifying the intake and exhaust systems keeps the vehicle's original noise emission within legal limits. Removing fairings, however, does not directly affect noise control and can sometimes increase noise or risk, so it is not recommended for noise reduction. Following these guidelines helps ensure quieter and more environmentally friendly driving.