The Genuine BMW Sound Insulat. Splash Wall Upper Part - 51489175110 is a soundproofing component designed for BMW vehicles. It is specifically designed to reduce noise and vibrations from the engine and road, providing a quieter and more comfortable driving experience. This splash wall upper part is made from high-quality materials and is an authentic BMW product, ensuring a perfect fit and optimal performance. It is easy to install and helps to improve the overall sound insulation of the vehicle.