E46 M3 INC CSL Rear Diff Rear Mount E6X Those noises are a sure

Those noises are a sure sign of a worn or failed differential bushing

Hardware has a nylon insert so it does not back out on its own

Part Number:  25111204422 / 25-11-1-204-422

These are a common upgrade that will reduce the length of  your shifter leading to a reduced throw between shifts

then your caliper might be twisting

E46 M3 INC CSL Rear Diff Rear Mount E6X Those noises are a sureTransform the handling and stability of your classic BMW with these Powerflex Bushings! Engineered to outperform, these upgraded polyurethane bushes provide a significant boost in your vehicle's performance by enhancing its responsiveness and control. Key Features: Enhanced Stability: Experience a noticeable improvement in ride stability, perfect for both daily driving and spirited sessions on twisty roads. Superior Handling: With increased rigidity