BILSTEIN - B14 Height Adjustable For BMW 1/2/3/4 SERIES

Premium ride-height adjustable coilover kit for BMW F-Series 1, 2, 3 and 4

Transform your BMW with a proven German-made coilover system designed for fast-road and trackday use. This ride-height adjustable kit delivers sharper turn-in, tighter body control and confident feedback without ruining everyday comfort. It is a true bolt-on suspension upgrade for enthusiasts who want better grip, cleaner stance and consistent performance.

We have fitted these kits for customers and on our own builds and the results are superb. Owners consistently report flatter cornering, improved stability and a more precise, connected steering feel.

Key benefits

• Ride-height adjustable via threaded spring perches for a drop of roughly 30 to 50 mm front and rear
• Monotube, gas-pressure struts with sport-tuned damping for crisp response on B-roads and circuits
• Matched performance springs for balanced handling and reduced body roll
• Triple-C corrosion-resistant coating for long-term durability in UK weather
• TÜV approved for quality and safety
• 2-year manufacturer warranty

Why this coilover kit

Developed and validated under motorsport conditions, this setup pairs single-tube dampers with precisely matched spring rates and a robust round-thread adjuster. The result is predictable chassis balance, excellent traction out of bends and a clean, level stance you can fine-tune to your preference.

Fitment

Compatible with the following BMW models from 2010 onward:

• BMW 1 Series: F20, F21 including M135i and M140i
• BMW 2 Series: F22, F23, F87 including M235i and M240i
• BMW 3 Series: F30, F31, F34, F80 including 335i and 340i
• BMW 4 Series: F32, F33, F36, F82, F83 including 435i and 440i

What you get

• Front and rear coilover assemblies with adjustable spring seats
• Performance springs matched to the dampers
• All required hardware as supplied by the manufacturer

Perfect for

• Fast-road setup with a lower, more aggressive stance
• Track days and spirited driving where control and consistency matter
• BMW owners seeking a high-quality coilover upgrade over stock shocks and lowering springs

Professional fitting available

Want it installed correctly the first time with a geometry setup to suit your driving style? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Search-friendly terms

BMW coilover kit, BMW suspension upgrade, BMW lowering kit, B14 coilovers, performance shocks and springs, adjustable suspension, stance and handling upgrade, F20 F21 F22 F23 F87 F30 F31 F34 F80 F32 F33 F36 F82 F83, M135i M140i M235i M240i 335i 340i 435i 440i, road and track suspension.