A turbocharger is a device that boosts the power of an engine by forcing more air into the combustion chamber. It consists of a turbine and a compressor, which are connected by a shaft. The turbine uses exhaust gases from the engine to spin and drive the compressor, which compresses incoming air. This process allows the engine to burn more fuel and produce more power without increasing its size. Turbochargers are commonly used in various vehicles, including cars and trucks, to improve performance and fuel efficiency. They are especially popular in sports cars and diesel engines, where extra power is often needed. By enhancing engine output, turbochargers help reduce emissions and improve overall efficiency.