PFF19-1219 Front Subframe Rear Bush is made with a more traditional Black 95A durometer polyurethane to offer superior performance and durability over the OE rubber bush, providing a more positive steering feel. It is recommended that PFF19-1218 Front Subframe Front Bush is fitted at the same time. A small increase in NVH should be expected when stiffening the connecting mounts between the subframe and chassis.