ST Suspensions XA Coilovers for BMW Z4 E85 (2003–2008) – Height & Rebound Adjustable Sports Suspension Kit | KW Engineered Twin‑Tube Dampers | Performance Lowering Coilover Set | Adjustable Shocks/Struts for Road & Track

Adjustable Sports Suspension for BMW Z4 E85

Transform the handling and stance of your BMW Z4 E85 with this height-adjustable sports suspension kit engineered with KW Automotive expertise. Expect sharper turn in, reduced body roll and a composed ride that you can fine tune in minutes for road or spirited driving.

Why enthusiasts choose this upgrade

• Rebound-adjustable damping via the top of the piston rod for quick, tool-friendly tuning
• Height adjustment at both axles using a continuous thread spring perch
• KW twin-tube damper technology for balanced comfort and control
• Galvanised struts with additional coating for outstanding corrosion resistance
• TÜV-tested adjustment range for peace of mind on UK roads
• Complete package with adjustable spring seats, performance springs, bump stops and dust boots

Lowering range

• Front: 20 to 50 mm
• Rear: 15 to 40 mm

Maximum permitted axle loads

• Front: 790 kg
• Rear: 890 kg

Built for drivers who want more

This upgrade brings individually adjustable rebound so you can dial in a firmer, more planted feel for track days, or soften things for daily comfort on rougher British roads. Increase rebound for extra stability and flatter cornering, or back it off for a smoother ride. The result is a Z4 that feels more agile, predictable and confidence inspiring in all conditions.

Engineering highlights

• External rebound adjustment
• Low-friction, pressure-resistant damper housings
• Mono block guide and seal package to minimise friction and keep contaminants out
• Front and rear thread adjustment where applicable

Real-world results

We have fitted these on customer cars and the feedback has been superb. Owners love the improved steering response, the ability to fine tune ride quality and the purposeful stance that still works for everyday driving.

Ideal search terms

BMW Z4 E85 suspension upgrade, height adjustable suspension kit, adjustable shocks, performance dampers, rebound adjustable shocks for Z4, sports suspension set, lowering kit for BMW Z4, KW engineered suspension, twin tube adjustable dampers, road and track suspension.

Professional fitting and setup

For installation and geometry setup, we recommend booking with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored fitting quote and advice on the best settings for your driving style.

Please ensure your vehicle’s axle weights are within the limits above before purchase. All specifications as listed.