
MMX G8X M2 / M3 / M4 1x Single Bushing for OEM Rear Differential Mount
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW S58: M3 (G80/G81), M4 (G82/G83), M2 (G87). Confirm your exact car with us before ordering.
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
The MMX Performance Rear Differential Raised Poly Bush is a two-position differential mounting bush engineered for the BMW G87 M2, G80 / G81 M3, and G82 / G83 M4. Developed as a direct replacement for the factory rear differential mounting bush, the MMX design can be installed at either the factory differential height or in a +10mm raised position, allowing the same component to support both standard-height and lowered G8X applications. At the OEM-height position, the polyurethane bush creates a more controlled connection between the rear differential and chassis, reducing unwanted differential movement under acceleration and changing drivetrain loads. For lowered vehicles, positioning the center section at +10mm raises the rear differential mounting point to help restore driveshaft geometry altered by the reduced ride height.
Fits: BMW S58: M3 (G80/G81), M4 (G82/G83), M2 (G87). Confirm your exact car with us before ordering.
Brand: MMX · Part #: MMR55-1605
BMW S58: M3 (G80/G81), M4 (G82/G83), M2 (G87). Confirm your exact car with us before ordering.
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M3 | G80/G81 | 2021+ | S58 (BMW M) | |
| M4 | G82/G83 | 2021+ | S58 (BMW M) | |
| M2 | G87 | 2023+ | S58 (BMW M) | |
| X3 M | F97 | 2020–2024 | S58 (BMW M) | |
| X4 M | F98 | 2020–2025 | S58 (BMW M) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Pairs well with

MMX High-Capacity Baffled Differential Sump / Oil Pan for BMW G8x M2/M3/M4

MMX Aluminum Insert Kit for OEM Rear Diff Bushing (Single Mount) - BMW G8X

MMX Differential Heat Shields for G8x BMW M2/M3/M4

