Dual Differential Mount

The MMX Performance G8X M2 / M3 / M4 Dual Differential Mount is a precision-engineered upgrade for the BMW G87 M2, G80/G81 M3, and G82/G83 M4. It adds a secondary support point to the differential assembly, leveraging the factory secondary bush mounting location. This reinforcement significantly improves differential stability, traction, and power delivery, especially under high load conditions such as hard acceleration and aggressive cornering. By increasing mounting rigidity and reducing deflection, this billet mount addresses the unwanted movement that can occur with the factory system. This leads to more consistent power delivery, enhanced tire contact, and a reduction in the likelihood of differential and CV seal weeping. The result is a more controlled, predictable driving experience suitable for both street and track use. Manufactured from CNC-machined 6061-T6 billet aluminum, the MMX mount offers exceptional strength and a lightweight profile. The installation is fully reversible and retains the factory differential sump without the need for fluid removal. This mount is compatible with OEM rubber differential bushes (33 31 6 899 168) as well as aftermarket polyurethane or solid bushing options. Notes: A differential bushing is required to complete the installation (OEM or aftermarket). Professional installation is recommended. The product includes a 1-year manufacturer warranty.