ST Suspensions ST-X Coilover Suspension Kit for BMW E46 3 Series Compact (316ti/318ti) 2001+ | Height Adjustable Coilovers, Shocks & Springs | KW Engineered | 30

STX Height-Adjustable Suspension Kit for BMW 3 Series Compact E46 - Part No: 346K

Transform your BMW 3 Series Compact E46 with a premium height-adjustable suspension upgrade engineered for sharper handling, a lower centre of gravity and that perfect stance. This adjustable shock and spring package is designed and manufactured by KW Automotive in Germany, delivering reliable road and track performance with everyday comfort.

Fitment and key specs

• Vehicle: BMW 3 Series Compact E46 - 06/2001 onward
• Part number: 346K
• Ride height drop - Front: 30 to 60 mm
• Ride height drop - Rear: 30 to 50 mm
• Maximum permitted axle load - Front: 935 kg
• Maximum permitted axle load - Rear: 1050 kg

Why enthusiasts choose this lowering suspension kit

• Precise ride height control - Threaded struts and durable polyamide adjuster collars make dialling in your front and rear height fast and repeatable.
• Sharper steering and reduced body roll - Sport-tuned twin-tube dampers and performance springs improve turn-in and mid-corner stability.
• Built to last - Galvanised struts with an additional protective coating, chrome-plated piston rods and a robust seal package for all-weather longevity.
• Everyday driveability - Confident, planted road manners for daily use, plus the poise you want for spirited driving or track days.
• Complete solution - Includes springs, adjustable spring perches, bump stops and dust boots for a tidy, hassle-free installation.

Engineering you can trust

Developed in conjunction with KW Germany, this performance suspension system uses a high-quality twin-tube damper design inside a low-friction, pressure-resistant housing. The result is consistent damping, improved grip and agility, and a controlled, comfortable ride on British roads. Corrosion protection and multi-lip sealing help keep the internals clean for long service life.

Real-world results

We have installed this kit on customer E46 Compacts and run it on our own builds. The feedback is consistently positive - quicker response, flatter cornering and a premium ride quality with stance-friendly lowering ranges that actually work on UK tarmac.

Perfect for

• BMW E46 Compact owners wanting a performance suspension upgrade
• Drivers seeking height-adjustable shocks and springs for a level, aggressive look
• Road and occasional track users who value handling and comfort

Popular search terms

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Professional fitting

Want it installed properly the first time? Book fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.