ST Lowering Spring Kit - 40/30 - 3 -series; E46 (346L/C/R/K) coupe 04/99-02/05 320Ci, 323Ci, 325Ci, 328Ci, 330Ci, 320Cd

Transform your BMW E46 Coupé handling and stance

Give your BMW 3 Series E46 2 door the road presence and cornering confidence it deserves with this premium sport spring set. Designed specifically for the E46 Coupé range from 04/1999 to 02/2005, this upgrade delivers a purposeful ride height drop while retaining everyday comfort on UK roads. Our workshop has fitted many of these springs and customer feedback has been consistently excellent for sharper turn in, reduced body roll and a genuine OEM plus ride.

Key advantages

• Ride height reduction 40 mm front and 30 mm rear for a balanced, aggressive look
• Taut, confidence inspiring handling without compromising daily drivability
• OEM grade fit and finish for factory like integration
• Powder epoxy finish for long lasting corrosion resistance
• Chrome silicon spring steel construction for strength and durability
• Heat treated multiple times for consistent performance
• Vehicle specific rates for the E46 chassis, with select tubed sections
• Compatible with standard shock absorbers, and works with many factory electronic dampers on applicable platforms

Compatible models

For BMW 3 Series E46 Coupé variants:

• 320Ci, 323Ci, 325Ci, 328Ci, 330Ci petrol
• 320Cd diesel
• Chassis codes 346L, 346C, 346R, 346K
• Model years 1999 to 2005

Technical details

• Front drop: 40 mm
• Rear drop: 30 mm
• Maximum front axle load: 970 kg
• Maximum rear axle load: 1100 kg
• Suitable engine output: 100 to 170 kW

What you will notice

• Lower centre of gravity for improved stability at speed
• Reduced squat and dive under acceleration and braking
• Cleaner wheel arch gap for the perfect OEM plus aesthetic
• More precise steering response on B roads and motorways

Why enthusiasts choose this E46 spring upgrade

If you want the cleaner look and sharper dynamics of a coilover without the complexity or harshness, these performance coils are the ideal solution. They pair brilliantly with healthy factory dampers, offering a straightforward, great value suspension refresh for an E46 daily driver or weekend car. Popular search terms include BMW E46 lowering springs, E46 drop springs, BMW 3 Series sport springs, E46 suspension upgrade, 320Ci 325Ci 328Ci 330Ci coil springs and 320Cd diesel lowering coils.

Professional fitting available

Want it installed properly first time? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Helpful notes

• Please verify your axle weights and engine output fall within the limits above
• A four wheel alignment is recommended after installation
• Works with standard shock absorbers in good condition