The ST X coilover kit gives the 2003-2008 Nissan 350Z and 2003-2007 Infiniti G35 adjustable ride height with fixed (non-adjustable) damping, tuned by KW Automotive in Germany for everyday street use. Both axles lower 0.4 to 1.6 inches (10-40mm) using a friction-optimized polyamide composite spring perch with a stainless-steel insert, so height changes are smooth and the strut resists corrosion. The galvanized steel strut housings, multi-layer pressure-resistant seal package and integrated dust-protection bump stop are built to hold up to daily driving, and each kit is application-specific and dyno-tested by hand.
| Type | ST X height-adjustable coilover kit (fixed damping, by KW) |
| Adjustability | Ride height adjustable; fixed (non-adjustable) damping |
| Lowering Range | Front 0.4"-1.6" (10-40mm), Rear 0.4"-1.6" (10-40mm) |
| Spring Rate | Progressive |
| Construction | Galvanized steel strut housing, polyamide composite spring perch with stainless-steel insert |
| Made In | Germany (KW Automotive) |
| Warranty | 5-year limited, unlimited mileage |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2007 | INFINITI | G35 | Base |
| 2005 | Nissan | 350Z | 35th Anniversary Edition |
| 2003-2008 | Nissan | 350Z | Base |
| 2003-2008 | Nissan | 350Z | Enthusiast |
| 2005-2008 | Nissan | 350Z | Grand Touring |
| 2007-2008 | Nissan | 350Z | Nismo |
| 2003-2005 | Nissan | 350Z | Performance |
| 2003-2008 | Nissan | 350Z | Touring |
| 2003-2006 | Nissan | 350Z | Track |
