Every motor vehicle must be equipped with what essential component?

Every motor vehicle must have a muffler because it plays a crucial role in reducing the noise produced by the engine, ensuring that the vehicle operates within acceptable sound levels. Additionally, a muffler helps to control emissions, contributing to a vehicle's overall environmental compliance. This component is essential not only for noise regulation but also for the proper functioning of the exhaust system by directing harmful gases away from passengers and minimizing air pollution.

While other components like a spare tire, first aid kit, and windshield wipers can enhance safety and preparedness, they are not universally required for all vehicles on the road. Thus, having a functioning muffler is a legal requirement in many states, including South Carolina, making it an essential component for any motor vehicle.