MMR55-1618

MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4

The MMX Rear Diff OEM Bush Aluminium Insert Kit ‘Single Rear Mount’ (MMR55-1618) is engineered for the BMW G8x M2, M3 and M4, on both RWD and xDrive models. Fitted into the factory rubber differential bushes, the precision machined inserts fill the voids that allow the diff to move under load, tightening up the connection to the chassis without replacing the OEM bushes. The kit covers all five factory mounting points: four inserts for the front and one for the single rear mount. Paired with the MMX OEM Differential Dual Mount (MMR55-1606) and an additional MMX Rear Diff OEM Bush Aluminium Insert Single ‘Dual Mount’ (MMR55-1619), it supports the full dual rear mount setup. Precision machined from 6061-T6 billet aluminium, it’s a fully reversible upgrade.

Factory Bushes, Firmer Hold.

The MMX Rear Diff OEM Bush Aluminium Insert Kit ‘Single Rear Mount’ (MMR55-1618) is a precision machined upgrade to the factory G8x M2, M3 and M4 differential mounts. The OEM rubber bushes are tuned with comfort in mind, and under the torque of the S58 they deflect, letting the differential move during launches, hard acceleration and fast changes of direction. The result is a rear end that feels less connected than the rest of the chassis.

The inserts fill the voids in the factory bushes, limiting that movement while the rubber stays in place to do its job. Four smaller inserts support the front mounting points and one larger insert supports the single rear mount, so the whole differential is held more firmly rather than one point in isolation. There’s no perceivable increase in noise, vibration or harshness inside the cabin, and the inserts can be removed at any time to return the car to stock.

The design has been proven on the M-Lite platform across F2x and F3x vehicles before being developed specifically for the G8x M-cars. For owners running, or planning to run, the MMX OEM Differential Dual Mount (MMR55-1606), one additional MMX Rear Diff OEM Bush Aluminium Insert Single ‘Dual Mount’ (MMR55-1619) supports the second rear bush, completing the dual rear mount setup.

MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4
SKU: MMR55-1618

MMX Rear Diff OEM Bush Aluminium Insert Kit 'Single Rear Mount' | G8x | M2 | M3 | M4

Sale price£149.99

Tax excluded. Shipping calculated at checkout

The MMX Rear Diff OEM Bush Aluminium Insert Kit ‘Single Rear Mount’ (MMR55-1618) is engineered for the BMW G8x M2, M3 and M4, on both RWD and xDrive models. Fitted into the factory rubber differential bushes, the precision machined inserts fill the voids that allow the diff to move under load, tightening up the connection to the chassis without replacing the OEM bushes. The kit covers all five factory mounting points: four inserts for the front and one for the single rear mount. Paired with the MMX OEM Differential Dual Mount (MMR55-1606) and an additional MMX Rear Diff OEM Bush Aluminium Insert Single ‘Dual Mount’ (MMR55-1619), it supports the full dual rear mount setup. Precision machined from 6061-T6 billet aluminium, it’s a fully reversible upgrade.

Kit Contains:
4 x Front Differential Bush Insert
1 x Rear Differential Bush Insert

In stock
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Vehicle fitment.

While every effort has been made to ensure the accuracy of vehicle information, we are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their specific vehicle and engine variant.

Series

G-Series

Chassis code

G80, G81, G82, G83, G87

Model year

M2 (2023+), M3 & M4 (2021+)

Where to purchase

Over 100 dealers, globally.

Our network of expert MMX Performance dealers can supply our full range, together with product guidance and advice, plus often an experience fitting service.

If you haven't got a MMX Performance dealer close to you, don't worry! Remember you can buy direct from our MMX Performance webshop.

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About MMX

A decade worth of obsession.

MMX Performance products have been designed and developed in the UK with passion by enthusiasts, for enthusiasts. All of our products are created in the world's toughest development lab: motorsport. We push the limits and reach new heights on track; then refine our products to give you the performance you need when you want it on the road.

Our extensive range of BMW and MINI upgrades offer unrivalled quality, performance and reliability worldwide; furthermore, every product carrying the MMX logo is thoroughly durability tested both on the road and track, so you can have complete peace of mind that you're installing only the best quality products to unlock the true performance potential from your car.