ST X Coilovers for BMW Z4 E89 (2009-2016) - Height Adjustable Suspension Kit / Lowering Kit - Adjustable Shocks & Springs by ST Suspensions, KW Engineered - Fits sDrive28, sDrive30i, sDrive35i, sDrive35is - Part No. 13220072

ST X Adjustable Suspension Kit for BMW Z4 E89 2009 to 2016 – Part Number 13220072

Give your E89 Z4 the stance, control and confidence it deserves. This ST X height-adjustable spring and damper package is engineered in Germany by KW for everyday drivability with serious fast-road composure. Expect sharper response, flatter cornering and a purposeful drop while keeping comfort for UK roads. Perfect for sDrive28, sDrive30i, sDrive35i and sDrive35is models.

Why this chassis upgrade works

• Ride-height tuning from subtle drop to aggressive street stance for a tailored look
• German engineered twin-tube shock absorbers for smooth, controlled damping
• Galvanised damper bodies with extra corrosion protection for long-term durability
• Chrome plated piston rods, monoblock guides and robust seal package for consistent performance in all seasons
• Matched performance springs with adjustable perches for precise corner height setup
• Includes bump stops and dust boots for OE-level refinement
• Backed by a 2 year manufacturer warranty

Lowering range and technical details

• Front drop: 15 mm to 40 mm 0.6 in to 1.6 in
• Rear drop: 10 mm to 35 mm 0.4 in to 1.4 in
• Design: Height adjustable spring and damper set
• Damper type: Twin-tube
• Construction: Galvanised steel with additional coating
• Part number: 13220072

Vehicle compatibility

• BMW Z4 E89 sDrive28 2009 to 2016
• BMW Z4 E89 sDrive30i 2009 to 2016
• BMW Z4 E89 sDrive35i 2009 to 2016
• BMW Z4 E89 sDrive35is 2009 to 2016

Note for cars with electronic damping control EDC. The electronic damping must be deactivated. Deactivation kit KW Part No. 68510145.

Real-world feedback

We run ST suspension on our own and customer Z4 builds. The result is exactly what E89 owners want. Quick turn-in, reduced body movement and a tidy ride height that still copes with British B-roads. Customers consistently praise the balance between comfort and precision, and the quality feels spot on for daily use and weekend blasts.

Installation and setup

For best results, choose professional fitting and a full four-wheel alignment. MJ Modifications in Warwickshire can install, set heights and fine-tune geometry for your usage. Request a fitting quote at info@mjmodifications.co.uk.

Manufactured by

ST Suspensions by KW Automotive

Warranty

Two year manufacturer warranty

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