The ST X coilover kit delivers ride-height adjustment for the everyday driver who wants sharper handling without giving up street comfort. Dampers are built by hand by KW in Germany and dyno-tested, with galvanized zinc-coated steel struts and a friction-optimized polyamide composite spring perch with a stainless-steel insert for corrosion-resistant, long-lasting height adjustability. Spring rates and damping are tuned specifically for this BMW application. Fits 2WD F22/F23 2-Series, F30 3-Series, and F32 4-Series models without Electronic Damping Control (EDC).
| Type | Coilover kit (ST X) |
| Adjustability | Ride height |
| Damping | Fixed |
| Construction | Galvanized zinc-coated steel struts; polyamide composite spring perch with stainless-steel insert |
| Fitment | 2WD only, without Electronic Damping Control (EDC) |
| Warranty | 5-year limited, unlimited mileage |
| Origin | Made in Germany (KW) |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2016 | BMW | 228i | Base |
| 2017-2021 | BMW | 230i | Base |
| 2013-2018 | BMW | 320i | Base |
| 2014-2018 | BMW | 328d | Base |
| 2012-2016 | BMW | 328i | Base |
| 2017-2018 | BMW | 330i | Base |
| 2014-2016 | BMW | 428i | Base |
| 2017-2020 | BMW | 430i | Base |
