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Height and Damping Adjustable Coilovers for the G35 / 350Z
ST's XTA coilover kit is a complete galvanized-steel coilover system for the 2003-2008 Infiniti G35 Coupe and 2003-2008 Nissan 350Z Coupe (Z33), both 3.5L. Each corner uses ST's factory-tuned dampers with independent ride height adjustment and aluminum camber-adjustable top mounts, allowing a dialed-in stance without sacrificing ride quality.
Key Features
- Galvanized steel coilover construction resists corrosion
- Independent ride height adjustment, front and rear
- Aluminum unibal camber-adjustable top mounts
- Linear rate coil springs matched to ST's damper tuning
- Direct bolt-in replacement for the factory strut/shock assembly
- TÜV-style engineering heritage from KW Automotive's ST brand
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003-2008 | Infiniti | G35 Coupe | 3.5L |
| 2003-2008 | Nissan | 350Z Coupe (Z33) | 3.5L |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | 18285802 |
| Kit type | XTA height-adjustable coilovers |
| Construction | Galvanized steel |
| Top mounts | Aluminum, camber-adjustable |
| Adjustability | Ride height, front and rear |
What's Included
- 4 coilover struts/shocks with springs pre-assembled
- Camber-adjustable top mounts
- Installation hardware
About the Brand
ST Suspensions is a KW Automotive brand focused on performance coilover systems, engineered in Germany and built for street and light track use with a balance of lowered stance and everyday ride comfort.
FAQ
Is this kit height adjustable?Yes, the ST XTA kit allows independent ride height adjustment at both the front and rear.
Is damping adjustable on this kit?No, the XTA kit uses a fixed factory-tuned damper valving; it is height adjustable but not damping adjustable.
Does this kit include springs?Yes, linear-rate coil springs matched to ST's damper valving come pre-assembled on the coilover body.
What is the top mount material?Aluminum unibal top mounts with camber adjustment are included at the front.
Will I need an alignment after installing this kit?Yes, a full wheel alignment is required after installing any coilover kit, especially after adjusting ride height or camber.
Does this fit both the G35 and 350Z coupe?Yes, this part number fits the 3.5L 2003-2008 Infiniti G35 Coupe and 2003-2008 Nissan 350Z Coupe (Z33).
Does this kit fit the sedan or convertible body styles?No, this listing is specific to the coupe body style; confirm your exact body style before ordering.
What is included in the box?All 4 coilover struts with springs and top mounts pre-assembled, plus installation hardware.
Installation Instructions
- Raise and safely support the vehicle, then remove the wheels.
- Disconnect the factory strut/shock assembly at the top mount and lower control arm/knuckle.
- Remove the factory strut/shock and spring assembly.
- Install the ST XTA coilover assembly at the factory mounting points and torque to factory specification.
- Set the desired ride height evenly on all 4 corners.
- Reinstall wheels, lower the vehicle, and have a full wheel alignment performed.
Prop 65 Warning
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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