What is cool whine?

Cool whine is also known as supercharger whine or blower whine. It is a high-pitched sound that is produced by the supercharger of a vehicle. The sound is distinctive and is often described as a whistling or whining noise. The cool whine is generated by the air that is being compressed by the supercharger and forced into the engine. The faster the supercharger spins, the louder and more pronounced the cool whine becomes. Cool whine has become popular among car enthusiasts and is often considered a desirable feature of high-performance vehicles. However, excessive cool whine can be annoying and may indicate a problem with the supercharger or other components of the engine.