* It filters out dirt and debris from the air that enters the engine. This is important because dirt and debris can cause damage to the engine's internal components.
* It helps to create a more efficient fuel mixture by combining air and fuel in a specific ratio. A more efficient fuel mixture means that the engine will run more smoothly and produce more power.
* It helps to dampen noise from the engine.
Without an airbox, the engine will be more likely to ingest dirt and debris, which can cause damage. The fuel mixture will also be less efficient, which will result in reduced power and fuel economy. The engine will also be louder.
If you are considering removing the airbox from your cbr 600, it is important to be aware of the potential consequences. It is not recommended to remove the airbox unless you have a specific reason to do so and you are aware of the risks.