The ST X is a height-adjustable coilover kit built by KW in Fichtenberg, Germany, using the same valving and damper technology as the KW Variant 1 but with a galvanized zinc coated steel strut housing in place of stainless steel. Front ride height adjusts 0.8 to 2.0 inches and rear ride height 0.6 to 1.4 inches through a polyamide composite spring perch with an embedded stainless steel insert, which stops corrosion between the strut and the perch so the height stays adjustable years later. Damping is fixed rather than adjustable, tuned in Germany for this specific chassis, and every twin-tube damper is shock dyno tested before it is boxed. A multi-layered sealing package, mono block guide system, low friction piston band, and elastomer bump stop with an integrated dust boot protect the hardened chrome piston rod from water and dirt.
Specifications
| Type | Height-adjustable coilover kit (ST X), fixed damping |
| Position | Front and rear (four corner kit) |
| Front Lowering | 0.8 to 2.0 in |
| Rear Lowering | 0.6 to 1.4 in |
| Damper | Twin-tube, non-adjustable, built by KW |
| Strut Housing | Galvanized zinc coated steel |
| Spring Perch | Polyamide composite with stainless steel insert |
| Quantity | 1 kit (4 coilovers) |
| Warranty | 5 year limited warranty, unlimited mileage |
| Part Number | 13210041 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000-2006 | Audi | TT Quattro | Base |
Shipping
- Orders placed before 3 PM ET typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
