BMW M135i / M140i / M235i / M240i F2x and 335i / 435i F3x Powerflex Rear Differential Front Mount Inserts

Made from high-quality polyurethane, this Powerflex insert fits without modification into the front bush of the rear differential mount on the BMW M135i, M140i, M235i, M240i, 335i and 435i, filling the factory voids. By stiffening the original bush, these inserts are designed to reduce differential movement during hard acceleration and gear changes, providing the rear axle better precision and responsiveness.