The Genuine BMW Sound Insulation for the Engine Compartment is a high-quality component designed to reduce noise and vibrations in the engine compartment of a BMW vehicle. This insulation is made from durable materials and is specifically designed to fit the engine compartment of BMW models. It effectively absorbs and dampens sound waves, creating a quieter and more comfortable driving experience. This product, with part number 51487158431, is an authentic BMW part and is ideal for replacing worn or damaged insulation in the engine compartment. It is easy to install and will help improve the overall performance and comfort of your BMW vehicle.