Powerflex Rear Diff Rear Mounting Bushes for BMW E46 M3 PFR5-4620
This is where Powerflex Polyurethane bushes make a world of difference! They do not perish like rubber bushes. Powerflex Rear Diff Rear Mounting Bushes. Powerflex Part Number = PFR5-4620. Powerflex Diagram Reference = 20.