Lower Reinforcement Brace Aluminium for BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309
Lower Reinforcement Brace Aluminium for BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309
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- Free fitment check before you order
Listed for: BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309Fitment notes & questions
Reinforcement Brace Aluminium for the BMW E90 E92. Key specs: material Billet Aluminium and surface finished Anodized. Most braces bolt in using existing holes.
Key features
- E46 M3 models have 2 of these under the floor
- 【Surface Anodized】Rust proof and anti-corrosion
- Made from billet Aluminium
Specifications
- Part type: Brace
- Item Weight: 1.039 kg
- Material: Billet Aluminium
- Placement on Vehicle: Reinforcement Brace Aluminium for BMW E90 E92 E93 M3
- Surface Finished: Anodized
Fitment for the BMW E90 E92
Listed for the BMW E90 E92. Check your year, model and trim against the title before you order.
OE and interchange numbers
18211436309
What it does
Less flex lets the suspension work more consistently and sharpens turn-in. Worn suspension and steering parts show up as clunks, wandering, uneven tire wear and a vague feel; fresh parts restore control, and performance parts sharpen it.
Installation & tips
- Check clearance around the brace for hoses and wiring before final tightening.
- Sway bars: Another bolt-on handling change.
- Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
- Use a service manual for your vehicle for torque specs and procedures, and keep the old part until the new one is fitted.
FAQ
What is the reinforcement brace aluminium made of?
The listing gives the material as billet Aluminium.
Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.
What should I check before ordering?
Compare the part number, specifications and fitment on this page with your vehicle and with the part you are replacing.
Before you order
- Confirm your year, make, model and trim match the fitment listed above (BMW E90 E92).

Chassis brace for the BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309: what to know
Less flex lets the suspension work more consistently and sharpens turn-in.
Fitment notes
- Listed for: BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309.
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentWhat else to plan for
- Sway bars. Another bolt-on handling change.
More for your car: BMW Parts · Suspension & steering
Questions about BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309 chassis brace
Will this fit my BMW E90 E92 E93 M3 E88 E46 X1 E84 X3 E83, Replace 18211436309?
Does it need drilling?
Where do specs and warranty details come from?
Questions & answers
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