Genuine OEM Audi Intercooler, part number 4M0145804BM. This vital component is part of the forced induction system, responsible for cooling the compressed air from the turbocharger or supercharger before it enters the engine. By reducing the air temperature, it increases air density, leading to more efficient combustion and improved engine performance. Weighing 3.732 kg, this intercooler is designed for optimal heat exchange. Choosing genuine OEM ensures correct dimensions for airflow, durable construction to withstand pressure and temperature variations, and efficient cooling performance for maximum engine output.