ST Sport Suspension Kit - 30/30 - 3 -series; E90, E91, E92, E93 (390L, 392C, 3C, 3K, 3L), Cabriolet / convertible 03/07- 325d, 335d

Transform your BMW 3 Series handling and stance

Give your E9x diesel the road presence and control it deserves with this ST fixed-rate spring and damper package. Expect a precise 30 mm drop front and rear for a purposeful look, sharper steering response and confidence-inspiring body control on B-roads and motorways alike. We have fitted and driven this setup ourselves and our customers love the balance of comfort and performance for daily use and fast-road driving.

Why choose this suspension upgrade

• Balanced 30 mm reduction front and rear for a level, aggressive stance
• Improved turn-in, reduced roll and better mid-corner stability
• Progressive-rate coils support grip without sacrificing ride quality
• Matched dampers deliver consistent, OEM-like refinement with sportier control
• Direct replacement kit that integrates with factory components

Engineering you can trust

• Progressive coils made from high tensile steel with a multi-layer anti-corrosion finish and a durable epoxy top coat
• Heat-resistant twin-tube shock absorbers with vehicle-specific fixed valving for the E9x chassis
• Low-friction internals with high-quality guides and seals for long-term reliability
• Built to OEM standards for consistency and longevity

Vehicle compatibility

Designed for BMW 3 Series diesel models on the E9x platform:

• E90 Saloon, E91 Touring, E92 Coupé, E93 Cabriolet
• 325d and 335d variants
• Cabriolet from 03/07 onward
• Chassis references: 390L, 392C, 3C, 3K, 3L

Key specifications

• Ride height change: approx 30 mm front and 30 mm rear
• Engine output suitability: 145 to 180 kW
• Maximum front axle load: up to 1090 kg
• Maximum rear axle load: up to 1200 kg

What you get

• Front and rear matched shock absorbers
• Front and rear progressive-rate springs
• Model-specific components as supplied by ST for a straightforward install

Ideal for searchers looking for

BMW E90 suspension kit, BMW E92 shocks and springs, E93 convertible lowering springs, E91 Touring handling upgrade, BMW 325d suspension upgrade, BMW 335d lowering kit, fixed-rate performance dampers, sport chassis kit, fast-road suspension, ride height reduction 30 mm, E9x spring and shock package, BMW 3 Series diesel suspension.

Professional installation

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

Buy with confidence

We have run this setup and supplied it to many happy owners. It delivers the right mix of comfort, control and style for everyday driving with weekend fun. Add to basket now for a proven BMW 3 Series suspension upgrade that looks right and drives even better.