ST Lowering Spring Kit - 50/30 - 3 -series; E90, E91, E92, E93 (390L, 392C, 3C, 3K, 3L), Touring 09/05- 323i, 325i, 330i, 316d, 318d, 320d

Give your BMW E9x the stance and feel it deserves

Dial in a purposeful ride height, sharpen road manners and close that arch gap with this performance spring set engineered for the BMW 3 Series E9x platform. Expect a meaningful 50 mm front and 30 mm rear drop for a balanced, road-friendly setup that looks right and drives beautifully on UK roads.

Why enthusiasts choose this spring upgrade

• Ride height reduction F/R: 50 mm front, 30 mm rear for a level, aggressive stance
• Works seamlessly with factory dampers, including vehicles fitted with electronic damping
• OE-grade construction from chrome silicon spring steel for long-term durability
• Multi tempered for strength and consistency under hard use
• Epoxy powder coated for corrosion resistance through all seasons
• Platform-specific rates for the E9x chassis to deliver confident, predictable handling
• Partly tubed design where required for reduced noise and added longevity
• Cleaner aesthetics with a noticeable drop that still retains day-to-day usability

Real-world results

We have installed these on multiple customer builds at MJ Modifications and the feedback has been consistently positive. Owners love the improved stance, the composed feel on B-roads and the tidy, OEM-plus ride quality.

Compatibility

Designed for the BMW 3 Series E9x platform from 09/2005:

• E90 saloon, E91 touring, E92 coupe, E93 convertible
• Petrol: 323i, 325i, 330i
• Diesel: 316d, 318d, 320d
• Chassis codes often referenced: 390L, 392C, 3C, 3K, 3L

Technical data

• Engine output suitability: 85 to 190 kW
• Maximum front axle load: 1045 kg
• Maximum rear axle load: 1200 kg
• Lowering amount: 50 mm front, 30 mm rear

Perfect for drivers searching for

BMW 3 Series suspension upgrade, E90 lowering springs, E91 drop springs, E92 performance springs, E93 suspension kit, E9x ride height reduction, sporty stance, BMW coil spring set, handling upgrade for 3 Series, daily-friendly performance suspension.

Installation and setup

Professional fitting and geometry alignment are recommended. Book your installation with MJ Modifications in Warwickshire. Request a quote via info@mjmodifications.co.uk.

Good to know

• Please verify your vehicle’s axle loads against the values above to ensure suitability.
• Intended for use with standard dampers, including cars equipped with adaptive or electronically controlled units.