H&R Anti Roll Bar / Sway Bar / Stabilizer/Stabiliser Bar Kit (Front 28mm 2-Way Adjustable, Rear 20mm) BMW 4 Series F32 F33 F36 xDrive 420i/428i 420xi 428xi 2011-on Coupe Convertible Gran Coupe | ARB Handling Upgrade | AWD Anti-Sway Set

H&R Chassis Stabiliser Set for BMW 4 Series xDrive F32 F33 F36 420xi 428xi, 2011 onwards

Unlock serious cornering confidence with the H&R front and rear roll control bars for your AWD BMW 4 Series. Expect flatter turns, crisper steering feel and a more planted, predictable drive on British roads and fast A-roads alike. Precision engineered in Germany and TUV approved, this is a proven suspension upgrade for drivers who want sharper handling without sacrificing everyday comfort.

Confirmed compatibility

• BMW 4 Series F32 Coupe, F33 Convertible, F36 Gran Coupe
• xDrive only: 420xi and 428xi
• Model years 2011 onwards as listed

Bar specs and adjustment

• Front bar diameter: 28 mm, two-position adjustable for fine tuning
• Rear bar diameter: 20 mm

Why enthusiasts choose H&R

• Premium spring-steel construction for high torsional stiffness and longevity
• One-piece design, cold formed and heat treated for consistent performance
• Made in Germany with strict quality control
• TUV approved for peace of mind

Real-world benefits

• Significantly reduces body lean for faster, cleaner corner exits
• Sharper front-end bite and improved steering precision
• More neutral balance on xDrive, helping to curb understeer
• Adjustable front settings let you tailor the car to road or fast-road use

Tested by us, loved by customers

We have installed these H&R roll control bars on multiple F3x xDrive cars at MJ Modifications and the feedback is consistently positive. Drivers report a flatter stance in corners, better grip, and a more engaging drive, especially on twisty routes. It is one of the highest impact handling upgrades for the money on the F32, F33 and F36 platform.

Professional installation and setup

Book expert fitting with MJ Modifications, Warwickshire. Request a quote: info@mjmodifications.co.uk. We recommend a geometry check after installation to maximise tyre contact and steering response.

Good to know

• Designed for xDrive vehicles listed above. Please confirm your model and drivetrain before ordering.
• Ideal paired with quality dampers and performance springs for a complete chassis tune.

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