The Genuine BMW Subframe Reinforcement Plate Bolt Kit - 451820 is a comprehensive kit of products designed to reinforce the subframe of a car. The kit includes a set of bolts specifically designed for this purpose, along with other necessary components. These bolts are made of high-quality materials to ensure durability and reliability. The kit also includes detailed instructions for installation, making it easy for car owners to reinforce their subframe without the need for professional help. This kit is compatible with a wide range of car models and is an essential addition for those looking to improve the strength and stability of their vehicle's subframe.