H&R Front & Rear Sway Bar / Anti-Roll Bar (ARB) Kit for BMW 3 Series F30 F31 F34 xDrive AWD 6-Cylinder (335i 340i) - Adjustable Stabiliser Bars 2011-on

BMW 3 Series F30 F31 F34 xDrive 6‑cyl Suspension Upgrade – H&R Sway Bar Set

Give your BMW 3 Series the sharp, confidence‑inspiring handling it deserves. This H&R front and rear stabiliser bar package is a proven fast‑road and track‑day upgrade for xDrive all‑wheel drive models, delivering flatter cornering, quicker turn‑in and a more neutral chassis balance on every B‑road blast.

Fitment

• BMW 3 Series F30 Saloon, F31 Touring, F34 Gran Turismo
• xDrive 4WD models with six‑cylinder engines
• Production from 10/2011 onwards

Key specifications

• Front bar diameter: 28 mm
• Rear bar diameter: 20 mm
• Front adjustability: 2 positions
• Rear adjustability: 2 positions

Why this upgrade transforms your BMW

• Substantially reduces body lean for flatter, more composed cornering
• Sharper steering response and improved turn‑in on road and circuit
• Dial out understeer or tame oversteer with easy two‑position adjustment front and rear
• Enhances stability in quick direction changes and high‑speed sweepers
• Delivers performance, comfort and safety in one well‑judged package

Engineered in Germany for durability and precision

• Premium steel alloy with one‑piece construction for superior strength
• Cold‑formed then heat treated for exceptional stiffness and long‑term durability
• Designed, manufactured and inspected in Germany with renowned TUV approval

Real‑world results

We run these on our own cars and our customers consistently report a more planted, predictable BMW with noticeably tighter cornering and improved confidence in all conditions. If you want that OEM‑plus feel with proper handling gains, this is the stabiliser kit to choose.

Perfect for

• BMW F30 F31 F34 xDrive handling upgrade
• Fast‑road set‑ups seeking reduced roll and better chassis balance
• Owners wanting adjustable front and rear sway bars without compromising ride quality

Professional fitting

Want it installed correctly the first time? Book fitting with MJ Modifications, Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search‑friendly terms

BMW F30 sway bar kit, F31 Touring stabiliser bars, F34 Gran Turismo anti‑sway set, xDrive AWD roll bar upgrade, adjustable front and rear ARBs, BMW 3 Series chassis upgrade, handling kit for 335i 340i xDrive 6‑cyl, fast road suspension, TUV approved German sway bars.