ST Suspension XA Coilovers for BMW Z4 E89 2009-2016 - Height & Rebound Adjustable Suspension/Lowering Kit - Adjustable Shocks & Springs - Fits sDrive28i/30i/35i/35is - KW Engineered - Part No. 18220072

ST XA Coilover Suspension for BMW Z4 E89 2009 to 2016 - Part No. 18220072

Unlock precision handling, a tighter stance and real-world comfort with the ST XA coilover suspension for the BMW Z4 E89. This premium ride height adjustable damper and spring package is a proven upgrade for drivers who want sharper turn in, reduced body movement and the ability to fine tune rebound to suit UK roads, spirited B-road blasts and occasional track use. Engineered with KW know-how, it delivers confidence, control and a clean, even arch gap without compromising daily usability.

Why this performance suspension is a favourite

• Rebound tuning at the top of the piston rod for quick, tool-free clicks that tailor comfort and body control.
• Continuous threaded bodies for millimetre-accurate ride height adjustment and perfect stance.
• KW twin-tube valving for consistent damping, great road compliance and dependable grip in mixed conditions.
• Durable galvanised housings with corrosion protection and low-friction seals for long service life.
• Designed for fast road setups with the headroom to tighten things up for track days when you want extra precision.

Lowering range and technical details

• Front lowering range: approx. 15 mm to 40 mm
• Rear lowering range: approx. 10 mm to 35 mm
• Adjustable rebound damping at the damper rod
• Twin-tube dampers, monoblock guide and multi-lip seal package
• Threaded struts for on-car height changes

Vehicle fitment

• BMW Z4 E89 sDrive28i
• BMW Z4 E89 sDrive30i
• BMW Z4 E89 sDrive35i
• BMW Z4 E89 sDrive35is

Part number

18220072

Real feedback from our workshop

We have installed this setup on customer Z4 E89s and the results speak for themselves. Owners report improved steering feel, calmer body movements through fast direction changes and a ride that can be dialled softer for commuting or tightened for a more focused weekend drive. The adjustability makes it easy to achieve the look and handling balance you want.

Important notes

• Cars with factory electronic damping require deactivation. Recommended kit: KW Deactivation Kit Part No. 68510145.

Professional fitting and alignment

For installation, geometry setup and a tailored damping baseline, we recommend booking with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Warranty

Two year manufacturer warranty.

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Ready to enhance grip, stance and confidence in your Z4 E89. Choose the ST XA coilover suspension Part No. 18220072 and enjoy a balanced, road-friendly performance setup backed by KW engineering.