ST Lowering Spring Kit - 30/20 - 4 -series; F32, F33 (3C) coupe 02/12- 420i, 428i, 420d

BMW 4 Series F32 F33 Suspension Upgrade – Precision Ride Height Drop 30 mm Front 20 mm Rear

Give your BMW 4 Series the stance and handling it deserves with this premium sport spring set. Designed to work seamlessly with your factory dampers, this coil spring upgrade delivers a purposeful ride height reduction, sharper turn-in and reduced body roll while keeping day-to-day comfort intact. Expect a cleaner, more aggressive look and a confident feel on B-roads and motorways alike.

Our team at MJ Modifications has installed this kit on customer cars and the feedback has been consistently excellent. Owners love the tighter chassis response, improved cornering grip and the tasteful drop that perfectly complements OE wheels or aftermarket alloys.

Why choose this spring kit

• Ride height reduction of approximately 30 mm at the front and 20 mm at the rear for a balanced, road-friendly stance
• Engineered to run with standard shocks, including vehicles equipped with adaptive damping systems
• Noticeably improved steering response and reduced body roll without ruining ride quality
• OEM-level manufacturing with vehicle-specific spring rates for the F3x platform
• Epoxy coated for long-term corrosion protection
• High-grade chrome-silicon spring steel, multiply tempered for durability
• Partly tubed design where required for correct seating and quiet operation

Compatibility and key data

• Chassis: BMW 4 Series F32 coupe and F33 convertible
• Engines: 420i, 428i, 420d
• Production: 02/2012 onward
• Power range: 135 to 180 kW
• Maximum front axle load: up to 965 kg
• Maximum rear axle load: up to 1170 kg

Always check your VIN plate for axle weights before ordering. This sport spring set is designed around the factory damper characteristics and works brilliantly as a standalone upgrade for fast-road use.

Real-world benefits

• Cleaner wheel arch gap and an assertive, OEM-plus look
• Flatter cornering and improved mid-corner stability
• Enhanced traction when accelerating out of bends
• Confidence-inspiring high-speed composure

Professional fitting available

Want it fitted right first time? Book installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quick quote and scheduling.

Search-friendly terms customers use

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Order today for a smarter stance, sharper handling and a quality finish that looks and feels right on your BMW.