Genuine OEM Volkswagen Exhaust Manifold Bypass Valve, part number 03N145901. This valve precisely regulates exhaust gas flow within the turbocharger and exhaust manifold assembly. It ensures optimal turbocharger performance, efficiency, and emissions control by diverting exhaust gases as needed. Weighing 1.446 kg and measuring 0.3 meters in length, this component is engineered to withstand extreme temperatures and pressures. Choosing a genuine OEM bypass valve guarantees exact fitment, proper calibration, and long-term reliability within a critical engine system.