ST Lowering Spring Kit - 30/30 - 1 -series; E81, 82, 87, 88 (182, 187, 1K2, 1K4, 1C) Cabriolet / convertible 03/08- 118i, 120i, 125i, 135i, 118d, 120d, 123d

Transform your BMW 1 Series with a 30 mm drop and sharper handling

Give your BMW 1 Series E8x chassis the stance and road holding it deserves. This ST performance spring set delivers an approximate 30 mm ride height reduction front and rear, tightening up body control while keeping everyday comfort when paired with healthy factory dampers. Ideal for owners who want a cleaner arch gap, improved steering response and a more planted feel without going to coilovers.

Compatible with BMW 1 Series models E81, E82, E87 and E88 across popular petrol and diesel variants including 118i, 120i, 125i, 135i, 118d, 120d and 123d. Also referenced as chassis codes 182, 187, 1K2, 1K4 and 1C.

Why enthusiasts choose this spring upgrade

• Approximate 30 mm front plus rear ride height reduction for a purposeful stance and reduced wheel arch gap
• Lower centre of gravity for crisper turn in, less squat and roll, and more confidence in fast corners
• Engineered to work with standard shock absorbers and compatible with adaptive dampers where fitted
• OEM grade build with chrome silicon steel for strength and longevity
• Multi stage tempering for consistent spring rates and durability
• Corrosion resistant epoxy powder coat to handle UK roads
• Model specific spring rates tailored to the E8x platform for real world performance
• Partly tubed design for robustness and refined operation

Fitment and key specs

• Platform: BMW 1 Series E81, E82, E87, E88 including cabriolet and coupe
• Engines covered: 118i, 120i, 125i, 135i, 118d, 120d, 123d
• Power range suitability: 95 to 225 kW
• Approximate lowering: 30 mm front and 30 mm rear
• Maximum axle loads: up to 965 kg front, up to 1120 kg rear
• Works with original dampers including adaptive systems where equipped

Proven on our builds

We have fitted these springs to multiple customer cars and our own BMW projects. Feedback is consistently positive, highlighting better road feel, tighter cornering and a tidy look that complements both standard and M Sport styling. Ride quality remains perfectly usable for daily driving when combined with good condition shocks.

Installation and support

Professional fitting is recommended, followed by a four wheel alignment. For expert installation, contact MJ Modifications in Warwickshire for a quote at info@mjmodifications.co.uk.

Helpful notes

• Please verify your vehicle’s front and rear axle weights on the VIN plate to ensure compatibility
• New springs may settle slightly after a short bedding in period
• If your dampers are tired, consider replacing them at the same time for best results

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