The ST XA coilover kit gives Audi B9 owners full control over ride height plus 16-click adjustable rebound damping, letting you dial in anything from comfort to sport with a turn of the knob. Built by hand by KW in Germany on galvanized zinc-coated steel struts with a friction-optimized polyamide composite spring perch and stainless-steel insert for corrosion-free, long-lasting height adjustability. Each damper is shock-dyno tested and ships preset to ST's recommended baseline, with a damper setup manual included.
| Type | Coilover kit (ST XA) |
| Adjustability | Ride height + rebound damping |
| Damping | 16-click manual rebound |
| Construction | Galvanized zinc-coated steel, monotube |
| Lowering Range | 0.4in-1.4in |
| Part Number | 182100BH |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2023 | Audi | A4 Quattro | Premium |
| 2017-2023 | Audi | A4 Quattro | Premium Plus |
| 2017-2023 | Audi | A4 Quattro | Prestige |
| 2019-2020 | Audi | A4 Quattro | Ultra sport |
| 2018-2023 | Audi | A5 Quattro | Premium |
| 2018-2023 | Audi | A5 Quattro | Premium Plus |
| 2018-2023 | Audi | A5 Quattro | Prestige |
| 2019-2023 | Audi | S4 | Premium |
| 2018-2023 | Audi | S4 | Premium Plus |
| 2018-2023 | Audi | S4 | Prestige |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
