The Powerflex USA Rear Subframe Rear Bushing Insert - PFR51423BLK is a high-quality aftermarket component designed to improve the handling and stability of a vehicle's rear subframe. This product is made from durable materials and features a unique design that effectively fills in any gaps or voids in the original subframe bushings. This helps to reduce movement and flex in the subframe, resulting in improved vehicle control and responsiveness. The PFR51423BLK is specifically designed for the rear subframe of a vehicle and is easy to install without the need for any modifications. This product is ideal for those looking to upgrade their suspension system and enhance their overall driving experience.