Our MMR Performance rear subframe bush insert kit for the F-Series BMW (F2x & F3x) is designed to limit movement in the factory rear subframe mounts to maintain proper suspension geometry when cornering. Installation is very simple, can be performed in under an hour, and is completely reversible.

These inserts were tested extensively by us in-house and independent BMW enthusiasts before release on multiple F2x and F3x vehicles. Our diff inserts fit diesel, petrol, manual and auto variants.

Features:

• Billet CNC machined 6061-T6 aluminium.
  
• Fills void in OE differential rubber bushings.
  
• No additional NVH transfer inside vehicle.
  
• Easy install with subframe and diff remaining institute.
  
• Reduces rear diff movement during launches and acceleration.
  
• Helps maintain correct suspension geometry under dynamic loading.

What’s Included:

• MMX MMR Billet rear subframe inserts for BMW