The Genuine BMW Heat Insulator Rear Silencer - 51487012710 is a high-quality heat insulator designed specifically for BMW vehicles. It is used to protect the rear silencer from excessive heat, which can cause damage and decrease performance. This insulator is made from durable materials and is designed to fit perfectly on the rear silencer for maximum effectiveness. It helps to maintain proper exhaust temperatures and reduces noise levels for a smoother and more efficient driving experience. This product is an authentic BMW part and is compatible with various BMW models.