What do the BMW G8x control arm bushings improve over the OEM rubber bushings?

The MMX BMW G8x control arm bushings replace the factory rubber items with spherical bearings that maintain precise front suspension geometry under all load conditions. OEM rubber bushings flex under the lateral loads of hard braking and cornering, allowing geometry to shift and producing vague steering feel. Spherical bearings eliminate that deflection entirely, delivering sharper turn-in, improved steering feedback, and more consistent front end behavior on both road and track.

How do the BMW G8x control arm bushings affect tire wear?

By stabilizing front toe under load, the BMW G8x control arm bushings prevent the toe variation that accelerates tire wear on the inner or outer edge under hard driving. Consistent toe means more even tire contact and optimal tire temperatures, extending tire life and improving grip and balance throughout a session.

Will the BMW G8x control arm bushings make the ride harsher?

Replacing rubber bushings with spherical bearings does transfer more road noise and vibration to the chassis than rubber, which is expected with a motorsport-grade bushing. The trade-off is significantly improved steering precision and suspension response — a worthwhile exchange for drivers who prioritize handling over absolute comfort.

Do the BMW G8x control arm bushings fit the G83 M4 Convertible?

Fitment on the G83 M4 Convertible is not confirmed. The bushings are confirmed for the G87 M2, G80 M3 (saloon and Touring), and G82 M4 Coupe. Contact us before ordering if your car is a G83 Convertible.

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Description

MMX Front Control Arm Spherical Bearings for G8x BMW M2, M3, and M4

BMW G8x control arm bushings from MMX Performance are motorsport-grade front control arm spherical bearing assemblies for the G87 M2, G80 M3, and G82 M4 engineered to permanently eliminate the deflection and wear associated with the factory rubber bushings. The OEM rubber control arm bushings on the G8x platform flex under the lateral loads of hard braking and aggressive cornering, allowing front suspension geometry to shift from its intended position and producing the vague, imprecise steering feel that limits the chassis’s full potential. The MMX BMW G8x control arm bushings replace that rubber compliance with high-quality spherical bearings, maintaining precise front suspension geometry under all load conditions for sharper turn-in, improved steering feedback, and a more connected driving experience on both road and track. Each assembly is CNC-machined from anodized 7075 aluminum paired with stainless steel spacers for maximum durability; a custom 3D-printed press tool is included to protect the bearing during installation and ensure a safe fit without damage. The upgrade also stabilizes front toe under load, reducing tire wear and maintaining optimal tire temperatures for improved grip, balance, and lap time consistency. Sold as a pair. Professional installation using a hydraulic or fly press is recommended.

Features

High-quality spherical bearings replace OEM rubber bushings, permanently eliminating deflection
CNC-machined anodized 7075 aluminum housing with stainless steel spacers
Maintains precise front suspension geometry under hard braking and aggressive cornering
Sharper turn-in and improved steering feedback
Stabilizes front toe under load, reduces tire wear, and maintains optimal tire temperatures
Includes custom 3D-printed press tool to protect bearing during installation

Applications

BMW M2: G87 | 2023-present
BMW M3: G80 | 2021-present
BMW M4: G82 | 2021-present

Notes

Sold as a pair
Fitment not confirmed on G83 M4 Convertible models. Contact us before ordering for that chassis.
A hydraulic or fly press is required for installation. Professional installation is recommended
Images are generic; actual product may vary

Frequently Asked Questions

What do the BMW G8x control arm bushings improve over the OEM rubber bushings? The MMX BMW G8x control arm bushings replace the factory rubber items with spherical bearings that maintain precise front suspension geometry under all load conditions. OEM rubber bushings flex under the lateral loads of hard braking and cornering, allowing geometry to shift and producing vague steering feel. Spherical bearings eliminate that deflection entirely, delivering sharper turn-in, improved steering feedback, and more consistent front end behavior on both road and track.
How do the BMW G8x control arm bushings affect tire wear? By stabilizing front toe under load, the BMW G8x control arm bushings prevent the toe variation that accelerates tire wear on the inner or outer edge under hard driving. Consistent toe means more even tire contact and optimal tire temperatures, extending tire life and improving grip and balance throughout a session.
Do the BMW G8x control arm bushings require professional installation? Yes. The BMW G8x control arm bushings require a hydraulic or fly press for installation they cannot be fitted with hand tools alone. A 3D-printed press tool is included to protect the bearing during pressing. Professional installation by a qualified workshop is recommended to ensure correct fitment and avoid bearing damage.
Will the BMW G8x control arm bushings make the ride harsher? Replacing rubber bushings with spherical bearings does transfer more road noise and vibration to the chassis than rubber, which is expected with a motorsport-grade bushing. The trade-off is significantly improved steering precision and suspension response a worthwhile exchange for drivers who prioritize handling over absolute comfort.
Do the BMW G8x control arm bushings fit the G83 M4 Convertible? Fitment on the G83 M4 Convertible is not confirmed. The bushings are confirmed for the G87 M2, G80 M3 (saloon and Touring), and G82 M4 Coupe. Contact us before ordering if your car is a G83 Convertible.

About MMX Performance

MMX Performance is a UK-based specialist in performance parts for BMW and MINI vehicles, crafting high-quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK, often putting them through track validation, to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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MMX Front Control Arm Spherical Bearings for G8x BMW M2 / M3 / M4 [MMR45-1601]

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MMX Front Control Arm Spherical Bearings for G8x BMW M2, M3, and M4

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