Genuine OEM Volkswagen Charge Air Tube, part number 1C0145840E. This tube is responsible for carrying compressed air from the turbocharger or supercharger to the intercooler or directly to the engine's intake system, maintaining boost pressure. It is a black, flexible tube, weighing 0.222 kg and measuring 0.35 m in length. Using a genuine OEM charge air tube ensures proper fitment, resistance to high pressure and temperature, and prevents boost leaks that can significantly impact engine performance.