Genuine OEM Volkswagen Exhaust Manifold With Turbocharger, part number 04L253020Q. This integrated unit combines the exhaust manifold with the turbocharger, a critical component for increasing engine power by forcing compressed air into the combustion chambers. It is located in the engine's exhaust system. The turbocharger housing is typically made of cast iron and steel for high-temperature resistance. Genuine OEM parts ensure precise fitment and the correct material properties for the demanding exhaust environment.