ST Suspensions Lowering Springs Kit 30/30mm for BMW 3 Series E90 E91 E92 E93 (E9x) 03/2007-on Saloon, Touring/Estate, Coupe, Cabriolet/Convertible | Sport/Drop Coil Spring Set | Fits 325d 335d Diesel | 390L 392C 3C 3K 3L

Transform your BMW E9x with a precision drop and sharper handling

Give your BMW 3 Series the stance it deserves and the control you want. This premium sport spring set delivers an even 30 mm ride height reduction front and rear, cutting wheel arch gap for a cleaner look while enhancing stability, steering response and cornering confidence. Designed to work with factory dampers, including electronic and adaptive systems, it is the ideal suspension upgrade for daily driving and spirited road use.

Optimised for the E9x platform

Engineered specifically for the E90, E91, E92 and E93 chassis, this spring package suits saloon, touring, coupé and cabriolet models. Compatible with diesel variants including 325d and 335d, and relevant type codes 390L, 392C, 3C, 3K and 3L from 03/07 onward. Perfect for owners seeking improved handling, reduced body roll and a purposeful, level drop without sacrificing everyday comfort.

Why enthusiasts choose these performance springs

• Lower centre of gravity for flatter cornering and crisper turn in
• Even 30 mm front and 30 mm rear drop for a balanced, OEM-plus stance
• Works brilliantly with standard shock absorbers and adaptive dampers
• Vehicle-specific spring rates for predictable, confidence-inspiring control
• Manufactured to OEM standards for durability and long-term reliability

Built to last

• Chrome-silicon steel construction
• Multiply tempered for strength and consistency
• Epoxy coated for excellent corrosion resistance
• Partly tubed design where required by application

Fitment and key specifications

• Lowering: 30 mm front / 30 mm rear
• Power range: 145 to 180 kW
• Maximum front axle load: 1090 kg
• Maximum rear axle load: 1200 kg
• Chassis: E90, E91, E92, E93
• Body styles: saloon, touring, coupé, cabriolet
• Model coverage includes diesel models such as 325d and 335d
• Type codes: 390L, 392C, 3C, 3K, 3L
• Build date: from 03/07

Please verify axle loads and power output against your vehicle before ordering.

Real-world results

We run these on customer cars and our own builds because they simply work. Expect tighter body control, a more planted feel at speed and a tasteful ride height that complements factory wheels and common aftermarket fitments. Feedback from our buyers has been consistently positive on both ride quality and appearance.

Installation and support

Professional fitting available at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote. A four-wheel alignment is recommended after lowering to maximise tyre life and handling precision.

Search-friendly compatibility and use cases

Ideal for owners searching for BMW 3 Series suspension upgrade, E90 lowering springs, E92 drop springs, E91 estate spring set, E93 convertible suspension, BMW diesel handling upgrade, sport suspension for 325d and 335d, coil spring kit for E9x, ride height reduction, stance improvement, arch gap reduction, and performance springs for daily road use.

Upgrade your chassis, sharpen the drive and perfect the look. Order your BMW E9x sport springs today.