BMW Z4 (Z85) Coilovers - KW Variant 1 (V1) Inox-Line Height Adjustable Stainless Steel Suspension Kit for Roadster & Coupe 2003-on - Lowering F: 20-50mm R: 15-40mm

KW Variant 1 Inox-Line Height-Adjustable Suspension for BMW Z4 Z85 Roadster and Coupe

Give your Z4 the stance, control and day-to-day refinement it deserves with KW Variant 1 Inox-Line height-adjustable suspension. This German-engineered system is a proven street performance upgrade that delivers sharper handling, flatter cornering and a purposeful drop while keeping comfort for UK roads. Perfect for BMW Z4 Z85 owners, including E85 Roadster and E86 Coupe models from 2003 onwards.

Fitment and drop range

Compatible vehicles: BMW Z4 Z85 E85 Roadster and E86 Coupe, 2003 onwards
Maximum axle loads: Front 790 kg, Rear 890 kg
Ride height adjustment: Front 20 to 50 mm, Rear 15 to 40 mm

Why enthusiasts choose KW Variant 1

• Adjustable ride height for the perfect stance and road presence without compromising drivability
• Pre-set damper valving that balances comfort and performance for daily use and fast-road driving
• Inox-Line stainless steel struts for outstanding corrosion resistance in British weather
• Reduced body roll and pitch for confident turn-in and stable, predictable handling
• Vehicle-specific spring and damper tuning tailored to the Z4 chassis
• Complete kit with model-specific documentation for a straightforward install
• Tested adjustment range for reliable, everyday usability

Easy height adjustment

Fine-tune your ride height with the dirt-resistant trapezoid thread and composite spring perches. Adjustments remain smooth and simple even after years of use. Front height is set on the threaded strut. Rear height is set via the supplied adjuster when the spring and damper are separate.

Real-world results

We have installed these on customer Z4 builds and the feedback is consistently positive. Owners report improved precision, better confidence on B-roads and a clean, even drop that looks right without ruining comfort.

Built to last

KW manufactures the Variant 1 Inox-Line using premium materials including stainless steel struts, corrosion-resistant springs and durable bump stops for long-term performance. Each kit is thoroughly tested to meet KW’s stringent quality standards.

Warranty

Supplied with a 2-year manufacturer warranty. Warranty can extend up to 5 years when installed by a KW specialist dealer.

Professional installation and setup

For fitting, geometry and advice, choose MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk. We can supply, install and set up your suspension for fast-road alignment to get the best from your Z4.

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