Genuine BMW F8X LHD Front Upper Strut Brace - OEM Strut Tower Bar for F87 M2 Competition, F80 M3, F82/F83 M4 (2012-2019) - Part 31127855855

BMW F8X LHD Front Top Mount Cross Brace, F87 M2 Competition, F80 M3, F82 and F83 M4, Part 31127855855

Transform steering feel and front-end composure with this factory BMW front top mount cross brace for the F-series M cars. Engineered by BMW for the S55-powered platform, this left hand drive tower reinforcement bar tightens the front structure, improves turn-in and gives a more connected, confidence-inspiring drive on fast road and track.

If you are searching for a front suspension brace, engine bay brace, shock tower reinforcement, chassis stiffening bar, front top brace or tower cross bar for the F80, F82, F83 or F87 M2 Competition, this genuine item is the correct LHD component. Part number 31127855855.

Why this genuine BMW brace is a smart upgrade

• Authentic BMW component for perfect alignment and OEM-level finish
• Increases rigidity across the shock towers for crisper steering and quicker response off centre
• Reduces flex for greater stability through direction changes and kerb strikes on circuit
• Bolt-on fit using factory pick-up points, no drilling or cutting required
• Ideal as a performance enhancement or as a direct replacement for a missing or damaged brace
• Designed to integrate seamlessly with the F8X chassis for durability and reliability

Tested by MJ Modifications on customer M2C, M3 and M4 builds, this front upper brace consistently delivers a more planted nose, sharper initial bite and a cleaner steering message without adding noise or harshness. Owners tell us it is one of the most effective OEM-plus handling upgrades you can make to the F-series M cars.

Fitment, left hand drive only

• F87 M2 Competition LCI, 2016 to 2019, LHD
• F80 M3 Saloon, 2012 to 2015, LHD
• F80 M3 Saloon LCI, 2015 to 2018, LHD
• F82 M4 Coupe, 2013 to 2017, LHD
• F82 M4 Coupe LCI, 2016 to 2019, LHD
• F83 M4 Convertible, 2013 to 2017, LHD
• F83 M4 Convertible LCI, 2016 to 2019, LHD

Note: Left hand drive vehicles only. Not suitable for right hand drive applications.

Part number

31127855855, BMW front top mount cross brace for F8X platform, LHD.

Fitting and workshop support

Installation is straightforward on compatible cars using the original mounting points and hardware. For professional fitting, alignment advice and complementary suspension setup, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

We can verify suitability for your vehicle. Provide your UK registration or the last 7 characters of your VIN at checkout and our team will confirm this is the correct LHD tower reinforcement bar for your car.

Manufacturer

BMW

Warranty

Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers when a valid VIN is provided at checkout on compatible vehicles.

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