ST Lowering Spring Kit - 40/40 - 3 -series; F30, F31, F34 (3L, 3K, 3-V) Touring 09/12- 316i, 320i, 328i, 316d, 318d, 320d

Transform the stance and handling of your BMW 3 Series with a precise 40 mm drop front and rear

Give your car the sharper look and tighter road holding you want with this ST performance spring set. Engineered for the F3x platform, these springs deliver a balanced 40 mm reduction at both axles, improving cornering response and reducing wheel arch gap while maintaining everyday comfort.

Why choose this upgrade

• Lower ride height by 40 mm front and 40 mm rear for a level, aggressive appearance
• Noticeably crisper turn-in and improved stability through bends
• Vehicle-specific spring rates for confident control and daily drivability
• OEM-grade construction for a perfect fit on factory dampers
• Compatible with cars fitted with factory electronic damping systems
• High-tensile chrome silicon spring steel with multi-stage tempering for durability
• Tough epoxy powder coating for corrosion resistance in UK conditions
• Tubed where required to minimise noise and maximise longevity

Fitment summary

Designed for BMW 3 Series F30 saloon, F31 Touring estate, and F34 Gran Turismo models from 09/2012 onwards covering petrol and diesel variants including 316, 318, 320 and 328.

If you are unsure about compatibility with your vehicle, contact us and we will help you confirm fitment against your VIN and axle weights.

Technical details

• Lowering front and rear: 40 mm and 40 mm
• Engine power range: 85 to 180 kW
• Maximum front axle load: 950 kg
• Maximum rear axle load: 1265 kg

Please check your car’s axle loads on the VIN plate to ensure they are within the limits above.

What owners love

We install these springs regularly at MJ Modifications and the feedback is consistently positive. Customers praise the improved stance, reduced body roll and the comfortable ride on British roads. It is a smart, high-value suspension upgrade that complements factory dampers and elevates both appearance and performance.

Professional installation

Want it fitted properly the first time? Book expert installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote.

Search-friendly terms

BMW suspension upgrade, sport springs for 3 Series, chassis tuning, coil springs, drop springs, ride height reduction, handling upgrade, performance springs for F30 saloon, F31 estate, F34 GT, stance kit, lowering springs for petrol and diesel models.