For driving enthusiasts, a number of the factory M3 parts are available as direct bolt-on items for all E8x 1 Series and E9x 3 Series models including the 135i and 335i. To help counteract for the early generations of unforgiving run-flat tyres, BMW fitted super soft subframe & differential bushings to all 1 & 3 Series models. During spirited driving, the standard soft bushings compromise traction and can overall give the rear-end of the vehicle a feeling of being remote and disconnected in certain situations. We've put together a kit of M3 factory performance bushings to help improve handling and driver feedback, without being overly harsh or unforgiving for everyday use. This kit is a great upgrade for all E8x 1 Series and E9x 3 Series models and will fit regardless of whether your car was optioned with M Sport suspension. Our kit includes; - Lemforder Rear Subframe Bushing - Front Position x2 - Lemforder Rear Subframe Bushing - Rear Position x2 - BMW Genuine Rear Differential Carrier Bushing - Forward Position x2 All items are the originals fitted at the factory to M3's. Foward Bushing, Part: 33312283382 x2 Lemforder Part: 37798 01 Rearward Bushing, Part: 33312283383 x2 Lemofrder Part: 37797 01 Carrier Bushing, Part: 33312284019 x2