MMX BMW Adjustable Rear Toe Arms For G8X & F8X M2, M3 & M4

The MMX Adjustable Rear Toe Arms are a billet 6061-T6 aluminium suspension upgrade for the BMW G8X and F8X M2, M3 and M4. They replace the OEM rubber-bushed arms with pillow bush rod ends, holding rear toe consistent under load rather than letting it move as the bush deflects, and allowing the setting to be dialled in precisely for road or track.

What Rubber Bushes Cost In Rear Toe

A factory toe arm is located by a rubber bush, which deflects under lateral and longitudinal load. That deflection means the rear toe setting on the alignment rack is not the setting the car actually runs at mid-corner or under power. The result is a rear axle that feels slightly loose or unpredictable at the limit, and tyre wear that is heavier than it should be.

Pillow Bush Rod Ends Instead

Replacing the rubber with a pillow bush removes the compliance. Rear toe stays where it was set regardless of load, so the car behaves consistently, turn-in is sharper and the rear axle communicates far more clearly. Tyre wear also becomes more even, which matters on a chassis that is hard on rear tyres to begin with.

Adjustable For Any Setup

The arms are fully adjustable, which makes them equally useful for correcting the toe change that comes with lowering a car and for dialling in a specific track alignment. Note that lowered vehicles will see a reduced range of toe adjustment and an increased minimum camber figure, which should be factored into any planned setup.

Key Features

• Machined from billet 6061-T6 aluminium
• Pillow bush rod ends replace the deflecting OEM rubber bushes
• Holds rear toe consistent under hard driving
• Reduces uneven rear tyre wear
• Sharper chassis response and clearer rear axle feedback
• Fully adjustable for road or track alignment settings
• Suits both standard and lowered vehicles
• Fully reversible – no modification required

Specifications

• Part Number: MMR55-1609
• Material: Billet 6061-T6 aluminium
• Bushing: Pillow bush rod ends
• Sold As: Pair

Compatibility

• BMW G80 M3, G81 M3 Touring, G82/G83 M4 and G87 M2
• BMW F80 M3, F82/F83 M4 and F87 M2 including Competition

Frequently Asked Questions

Is an alignment required after fitting?
Yes. Any change to a toe arm requires a four-wheel alignment afterwards to set the car up correctly.

Do they increase noise in the cabin?
A pillow bush transmits more road noise than a rubber bush. On a car used for fast road and track driving this is a normal and expected trade-off for the precision gained.

Can they be fitted to a lowered car?
Yes, though a lowered car will have a reduced range of toe adjustment and a higher minimum camber figure.

Why Choose MMX Toe Arms?

Rear toe stability is what separates a chassis that can be leaned on from one that has to be managed. MMX addresses it with billet arms and proper pillow bushes rather than a stiffer rubber compound. R44 Performance supplies the full MMX G8X and F8X suspension range.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

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