Description
Engineered to give drivers control over both stance and handling, these ST XA coilovers provide wide-ranging height adjustment and a tunable damper package so you can dial comfort or sportiness without compromising road control. The kit uses a composite adjustable spring perch with a stainless steel insert to prevent corrosion and ensure durable height adjustability, while galvanized zinc-coated steel struts, a multi-layer sealing package and a dust protection system protect the hardened chrome piston rod and internal valve packs for long service life. Delivered preset to KW dyno–tested damper settings, the coilovers include a detailed setup manual and a 16-click rebound adjustment that lets you refine driving dynamics precisely for BMW platforms such as the M340i and M240i.
Features:
- Wide range of height adjustment
- Sixteen-click adjustable rebound damping control
- Composite spring perch with stainless steel insert
- Galvanized zinc-coated steel struts
- Dust protection system for piston rod
- Multi-layer pressure resistant sealing package
- Monoblock guide system with low friction band
- Factory preset damper settings from KW dyno
- Detailed damper setup manual included
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2024 | BMW | M240i | Base |
| 2020-2023 | BMW | M340i | Base |
| 2022-2024 | BMW | M440i | Base |
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