The Genuine Porsche Control Arm Shim - 99634154330 is a small, metal shim designed to fit between the control arm and the mounting bracket on a Porsche vehicle. It is used to adjust the position of the control arm, allowing for precise alignment and improved handling. This product is an authentic Porsche part and is designed specifically for use in Porsche vehicles. It is made from high-quality materials and is built to withstand the demands of regular use. This control arm shim is an essential component for maintaining the performance and safety of a Porsche vehicle.