ST Lowering Spring Kit - 40/30 - 3 -series; E46 (346L/C/R/K) saloon 02/98-02/05 316i, 318i

Transform the stance and handling of your BMW with this premium sport spring set designed for E46 saloon models. Expect a purposeful 40 mm front and 30 mm rear drop for a cleaner look, lower centre of gravity and confident road manners, all while retaining everyday comfort with your factory dampers, including cars equipped with electronic damping.

Why enthusiasts choose this spring upgrade

• Sharper turn-in and reduced body roll for a more planted feel on B-roads
• Even, purposeful ride-height drop for a balanced, road-ready stance
• Factory-grade durability thanks to multi-tempered chrome-silicon steel
• Corrosion-resistant epoxy powder finish for long-term protection
• Vehicle-specific rates for the E46 platform to keep comfort intact
• Works with standard shock absorbers and cars with electronic dampers

Fitment and key specs

• Vehicle: BMW E46 4-door models 1998 to 2005, 316i and 318i
• Chassis codes: 346L, 346C, 346R, 346K
• Approximate drop: 40 mm front, 30 mm rear
• Engine output range: 77 to 105 kW
• Maximum axle loads: front up to 895 kg, rear up to 1100 kg

Important: Always verify the axle weights on your vehicle identification plate to ensure compatibility. This spring set is tailored to the listed axle load limits and engine power range.

Real-world results

We have fitted these springs for customers who wanted an affordable suspension upgrade without the harshness of full coilovers. Feedback has been consistently positive about the ride quality, improved confidence in corners and the clean, level stance.

Popular search terms to help you find the right kit

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Fitting and setup

Professional installation and a four-wheel alignment are recommended after lowering. For fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.