Rear Upper Polyurethane Shock Mounting Complete Kit For BMW E30 E36 E46 Z3 Z4. For BMW E36 1992-1999 323 325 328 M3. For BMW E46 1999-2006 323 325 328 330 M3 (Not Convertible). Also improves ride experience by reducing rear end knocking caused by rubber wear in the original rear shock mount.
