Genuine OEM BMW Rear Subframe/Chassis Brace Kit F20 F21 F22 F22 LCI - 1 Series & 2 Series (M135i M140i) Underbody/Underfloor Stiffener, Rear Axle/Crossmember Reinforcement, Direct-Fit OEM Retrofit, Handling/Stability Upgrade - GBMW0004

BMW F20 F21 F22 Rear Chassis Reinforcement Kit, Original BMW, Part No. GBMW0004

Give your 1 Series or 2 Series a sharper, more composed rear end with this genuine BMW rear chassis strengthening package. Engineered by BMW for F20 and F21 hatchback models including M135i and M140i, and for F22 and F22 LCI coupe models, this factory retrofit uses a rigid cross member and two support links to tie the rear cradle to the body shell. The result is increased torsional stiffness, reduced flex under load and a more planted feel when you push on.

We have installed this kit on our own vehicles and many customer cars, and the improvement in stability and precision is immediately noticeable. Customers consistently praise the enhanced confidence on B roads and motorways, with no unwanted noise, vibration or harshness. If you are searching for a BMW rear axle reinforcement, subframe stiffener, underfloor stiffening kit or OEM body bracing for F20 F21 F22, this is the original BMW solution that fits like it left the factory that way.

Key benefits

• Original BMW components for factory-quality fit and finish
• Increases body rigidity around the rear axle for improved composure
• Cleaner turn-in, better mid-corner stability and improved traction over uneven surfaces
• Uses existing mounting points, no cutting or drilling
• Proven upgrade for M135i and M140i, as well as non-M F22 models
• Ideal handling upgrade for fast road driving and daily use

What you receive

Option 1, With new hardware

• 1 x Structural brace
• 2 x Thrust rods
• 12 x Screws
• 4 x Bolts

Option 2, Without replacement hardware

• 1 x Structural brace
• 2 x Thrust rods
• 2 x Bolts

The product image shows the version with new screws and bolts. If your existing fasteners are in good condition you can select the option without replacement hardware and reuse your originals.

Fitment

• BMW 1 Series F20 and F21 M135i 2012+
• BMW 1 Series F20 and F21 M140i 2015+
• BMW 2 Series F22 and F22 LCI, all variants

Part number

GBMW0004

Manufactured by

BMW

Installation

Straightforward bolt-on upgrade that utilises factory pick-up points. Professional fitting is recommended to ensure correct torque settings and alignment. For expert installation, choose MJ Modifications in Warwickshire and request a quote at info@mjmodifications.co.uk.

Warranty

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

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