This is where Powerflex Polyurethane bushes make a world of difference! They do not perish like rubber bushes. Powerflex Part Number = PFR5-4615G. Powerflex Diagram Reference = 19. BMW E46 M3. PFR5-4615G replaces the original arm and bush OE numbers: 33326770813 and 33326770824 respectively.
