MMX Front Differential Cradle for BMW G8x M2/M3/M4 – MMR55-1604
MMX Front Differential Cradle for BMW G8x M2/M3/M4 – MMR55-1604
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MMX front differential cradle for BMW G8x M2, M3 and M4
The MMX MMR55-1604 front differential cradle directly replaces the original BMW G8x mount. Precision-machined from 6061-T6 billet aluminium and fitted with 80A polyurethane elements, it limits drivetrain movement under hard acceleration and load changes.
Installed on its own at the factory height, it improves differential support without altering vehicle geometry. Combined with the MMX MMR55-1605 raised rear differential bush, it allows the differential to be raised by 10 mm to correct driveshaft angles on lowered cars.
Key benefits
- Machined 6061-T6 aluminium.
- Grey 80A polyurethane elements.
- Reduces differential movement under high load.
- Factory-height or 10 mm raised configuration depending on the associated components.
- Helps reduce stress, heat build-up and premature driveshaft wear on lowered vehicles.
- Direct fit to the original mounting points with no chassis modification.
- Designed for fast-road and track use with only a limited increase in drivetrain noise and vibration.
Technical specifications
| Manufacturer | MMX Performance |
|---|---|
| Part number | MMR55-1604 |
| Category | Transmission |
| Material | Machined 6061-T6 aluminium |
| Element hardness | 80A polyurethane |
| Optional lift | +10 mm with MMX MMR55-1605 rear bush |
| Installation | Direct replacement, no modification required |
Vehicle compatibility
- BMW M2 G87 from 2023 — S58 engine.
- BMW M3 G80 and Touring G81 from 2021 — S58 engine.
- BMW M4 G82 and Convertible G83 from 2021 — S58 engine.
Please note: MMX confirms MMR55-1604 for the BMW G8x models listed above. It is not presented as compatible with BMW F8x models.
Available configurations
For a three-point factory-height or raised setup, combine this cradle with the appropriate MMX rear bush. For a four-point setup, add the MMX MMR55-1606 dual differential mount and a second matching rear bush.
Installation advice
Professional installation is recommended. Check the generation, chassis code, engine and suspension configuration before ordering.
Discover MMX Performance parts · View transmission parts · View BMW performance parts
| Reference / SKU | MMR55-1604 |
|---|---|
| Part type | Transmission |
| Vehicle make(s) | BMW |
| Condition | New |
| Shipping | Standard delivery within 3 to 5 working days |
Specifications may vary by variant or application. Always check the manufacturer reference, instructions and exact fitment before installation.
Compatible vehicles
This list contains the validated vehicle applications from the reference catalogue for this part.
Compatibility can depend on the exact version, factory options and existing vehicle modifications. If in doubt, request confirmation before installation.
Before installation
Understand every detail of your part
A reliable build starts with the exact reference, controlled installation and compliant use. Request technical adviceHow do I confirm that this exact reference fits my vehicle?
Check the make, model, generation, year, engine, power and transmission shown on the page, then compare the manufacturer reference. If in doubt, send us your VIN, engine code and current modifications before ordering.
Does fitment remain valid on a modified vehicle?
Not necessarily. ECU tuning, a different turbo, an existing exhaust, brake upgrades, suspension changes or body modifications can affect fitment. Each modified configuration must be checked individually.
Is this part approved for road use?
Only the documentation for the exact reference can confirm this. CE, ECE or TÜV approval may apply to a specific vehicle and configuration. Decat or competition-only parts must be used only where legally permitted.
Will installation require extra parts or adjustments?
Depending on the reference, seals, bolts, clamps, adapters, hoses, supports, sensors, wheel alignment or electronic adjustments may be required. Follow the manufacturer instructions and use an experienced workshop.
Will the vehicle need ECU calibration after installation?
Some parts work without calibration, while others require ECU adaptation for safety, reliability or expected performance. Intakes, downpipes, turbos, injectors and major cooling changes should be assessed with your tuner.
What is the delivery time for this part?
Standard delivery is generally 3 to 5 working days after processing. Made-to-order, configured or back-ordered references may take longer. Express delivery is not available.
Can I return a part after trial fitting or installation?
No. Returns are accepted within 14 days only for new, complete, unfitted and unmarked products in intact original packaging. Return shipping is paid by the customer. Trial fitting that leaves marks may cause refusal.
How can I request a technical check before ordering?
Use the Contact page and include the product link or reference, VIN, engine code, power, year, transmission and existing modifications. The more complete the configuration, the more precise the check can be.