Description
The MMX Performance Dual Differential Mount is a precision-engineered drivetrain upgrade designed to reinforce one of the most critical weak points in the BMW G8X platform. Developed specifically for the G87 M2, G80 and G81 M3, and G82 and G83 M4, this mount adds a second differential support point using the factory secondary bushing location to significantly improve stability under load.
By reducing unwanted differential movement during hard acceleration, aggressive driving, and track use, the MMX Performance Dual Differential Mount delivers sharper driveline response, improved traction, and increased driver confidence.
Improved Differential Stability and Driveline Control
From the factory, the G8X differential relies on a single primary mounting point. The MMX Performance Dual Differential Mount utilizes the unused factory secondary bush mounting hole to introduce an additional support point, increasing overall rigidity and reducing rotational movement of the differential.
This added control helps stabilize the drivetrain under high torque loads, improves tyre contact during acceleration, and enhances overall vehicle feedback without introducing harshness when paired with compliant bushings.
OEM-Style Installation and Reversible Design
The MMX Performance mount installs using factory mounting locations and hardware alignment, requiring no cutting, drilling, or modification. The factory differential sump is retained, and no fluid draining or refilling is required during installation.
The design is fully reversible, allowing the vehicle to be returned to stock condition at any time.
Bushing Compatibility and Long-Term Protection
The mount requires a differential bushing to complete installation and is compatible with a wide range of options, including OEM rubber, aftermarket polyurethane, and solid bushings.
By limiting excess differential movement, the MMX Performance Dual Differential Mount also helps reduce the likelihood of differential and CV seal weeping that can occur during sustained high-load driving.
Vehicle Fitment
This MMX Performance Dual Differential Mount MMR55-1606 is compatible with the following vehicles:
- BMW G87 M2 (2023–present)
- BMW G80 M3 Sedan (2021–present)
- BMW G81 M3 Touring (2023–present)
- BMW G82 M4 Coupe (2021–present)
- BMW G83 M4 Convertible (2021–present)
Chassis codes:
- G80
- G81
- G82
- G83
- G87
Key Features
- Utilizes factory secondary differential bushing mounting point
- Adds a second support point to reduce differential movement
- Requires a differential bushing for installation
- Compatible with OEM rubber bushing 33 31 6 899 168
- Compatible with polyurethane or solid differential bushings
- Direct OEM-style bolt-on installation
- Retains factory differential sump with no fluid changes required
- Helps reduce differential and CV seal weeping under load
- Improves traction, stability, and driveline response
- CNC-machined from 6061-T6 billet aluminum
- Lightweight, strong, and corrosion-resistant construction
- Fully reversible installation
