Upgrade your Audi B4's subframe with Verkline Polyurethane Subframe Bushings featuring an M12 bolt. Crafted for durability, these polyurethane bushings provide robust support to enhance the performance and stability of your subframe. Specifically designed for the Audi B4 with an M12 bolt, these bushings offer a practical solution for optimizing your vehicle's handling. Equip your subframe with this reliable set of polyurethane bushings, ensuring a more controlled and enjoyable driving experience on the road.