The Nissan Turbocharger is a performance-enhancing component used in Nissan vehicles. It is designed to increase the engine's efficiency and power output by forcing extra air into the combustion chamber. This allows more fuel to be burned, resulting in more power. The turbocharger is essentially a compressor that is driven by the engine's exhaust gases. By using this otherwise wasted energy to increase the mass of air, it achieves a more efficient use of the fuel. It's an essential part of Nissan's commitment to provide high-performance, fuel-efficient vehicles.