Performance M
STX Coilover Kit - 4-series (F32, F33, F36); (3C) Gran coupe; 2WD without electronic dampers max. allowed axle weight in kg Front: -950
STX Coilover Kit - 4-series (F32, F33, F36); (3C) Gran coupe; 2WD without electronic dampers max. allowed axle weight in kg Front: -950
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Transform the stance and handling of your BMW 4 Series with this ST X height-adjustable suspension kit, precision-built by KW Automotive. Tailored for rear-wheel-drive F32 Coupe, F33 Convertible and F36 Gran Coupé models that are not equipped with factory electronic damping, this premium setup delivers a seriously low look with fast-road composure and everyday comfort.
Lowering range
Front drop: 40 to 65 mm
Rear drop: 40 to 65 mm
Approved axle loads
Front up to 950 kg
Rear up to 1265 kg
Why enthusiasts choose this upgrade
- Height-adjustable ride for the perfect stance and practical clearance when you need it.
- Twin-tube damper design for confident fast-road control and improved cornering grip.
- Galvanised struts with additional protective coating for excellent corrosion resistance in UK weather.
- Chrome-plated piston rods and low-friction internals for durability and smooth response.
- Composite adjuster ring for easy, precise height changes even after many winters.
- Complete kit with matched sport springs, adjustable spring perches, bump stops and dust boots.
Real-world results
Installed on customer cars and our own builds, this ST suspension delivers a sharper turn-in, reduced body movement and a level ride quality that works brilliantly for daily driving, B-road blasts and occasional track use. Feedback from owners has been consistently positive on both looks and performance.
Fitment and compatibility
Designed for BMW 4 Series F32, F33 and F36 rear-wheel-drive models without adaptive or electronic dampers. If you are unsure about compatibility, contact us and we will confirm fitment for your specific vehicle.
Professional installation
For expert fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
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Notes
Always respect the stated axle load limits. Final ride height depends on vehicle specification and setup.
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