ST XA Adjustable Coilover Suspension Kit for BMW 3 Series F30/F31 (2012-2019) RWD/Rear-Wheel Drive - Saloon/Touring (Sedan/Estate) - Height & Rebound Adjustable Shocks & Springs - Lowering Upgrade - KW Engineered - Non-EDC/No Adaptive Dampers

Height and damping adjustable suspension upgrade for BMW 3 Series F30 and F31 RWD - without adaptive dampers

Give your BMW saloon or touring the stance, composure and confidence it deserves. This ST XA adjustable suspension set, engineered with KW Automotive know-how, blends precise handling with everyday comfort. Dial in your preferred feel on the car, enjoy sharper turn-in, reduced body movement and a clean, even drop that looks as good as it drives.

Key fitment information

• Vehicle platform: BMW 3 Series F30 saloon and F31 touring - chassis codes 3L and 3K
• Drive: rear-wheel drive only - not for cars with electronic damping control or adaptive shocks
• Approved axle loads:
  • Front: 951 to 1090 kg
  • Rear: up to 1230 kg
• Typical drop:
  • Front: 40 to 65 mm
  • Rear: 30 to 60 mm

Why enthusiasts choose this setup

• On-car rebound adjustment at the top of the piston rod - quickly fine tune firmness for fast road or a smoother commute
• Noticeably tighter cornering and stability with less roll, without sacrificing day-to-day drivability
• Continuous height adjustment via threaded bodies for a precise, level stance and better wheel fitment
• KW-engineered twin-tube dampers with low-friction sealing for consistent performance
• Durable zinc-coated struts with additional protective finish for long-term corrosion resistance in UK weather
• TÜV-tested height window for peace of mind

What you get

• Front and rear adjustable struts and matched springs
• Adjustable spring perches, bump stops and dust covers
• Everything needed for installation and setup within the tested range

Real-world results

We have fitted this kit on customer cars and our own builds - feedback has been outstanding. Owners love the confident steering feel, the predictable braking stability and the fact they can soften the ride for long journeys or stiffen it for a spirited B-road blast. It is a top choice for a street-focused BMW that can also handle the occasional track session.

Perfect for

• BMW F30 and F31 owners wanting a quality lowering kit with adjustable damping
• Fast-road handling upgrades and improved stance
• Balanced performance for daily driving, weekend drives and show-worthy fitment

Installation and support

Professional fitting highly recommended. MJ Modifications in Warwickshire can supply and install this suspension, set your ride height and help dial in your preferred rebound setting. Request a fitting quote at info@mjmodifications.co.uk.

Search-friendly terms customers use

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Note: For rear-wheel-drive cars without electronic damper control only. Always verify axle loads and clearances with your specific vehicle and wheel-tyre setup.