Product Details
The Stance XR1 coilovers for the 1997-2005 Lexus GS400 (JZS161) are the single-way adjustable, daily-driveable Stance coilovers built for owners who want one suspension setup that handles the commute, the canyon, and the occasional track day. Every Stance Suspension XR1 kit is dyno-tested at the Stance facility in Texas and shipped ready to install on your JZS161 Lexus GS400 — including dialed-in spring rates, fully adjustable damping, and independent ride-height adjustment on coilover bodies engineered specifically for the 1997-2005 Lexus GS400.
The XR1 line replaces Stance's older Super Sport coilovers with stronger materials, a wider damping adjustment range, and Stance's most durable corrosion-resistant coating to date. Whether you're lowering a 1997-2005 Lexus GS400 for the look or chasing lap times at your local track, the Stance XR1 coilovers give you a 100% rebuildable, revalvable suspension platform that grows with your build — serviceable and upgradeable at the Stance Suspension shop for the life of the vehicle.
Looking to lower your JZS161 Lexus GS400 on a set of adjustable Stance coilovers? The Stance XR1 coilovers drop the JZS161 chassis to a tunable ride height while keeping your factory suspension geometry intact. Spring rates and damping are pre-tuned for the JZS161 Lexus GS400 chassis so the coilovers bolt onto your 1997-2005 Lexus GS400 ready to install. Independent ride-height and damping adjustment let you fine-tune the lowered stance, or dial the chassis in for autocross, track, or daily driving on your JZS161 Lexus GS400.
Features
- 16 levels of damping adjustment, single-knob clicker on each corner
- Inverted monotube front damper with 45mm shaft for racing-grade rigidity
- Digressive valving — sharp low-speed control, smooth high-speed compliance
- Pillowball front top mounts for direct steering response
- Heat-treated chromoly piston rod and CNC-machined T6061 aluminum brackets
- Two-stage zinc + electrodeposited coating, 1,000+ hour salt-spray rated
- 100% rebuildable and revalvable at Stance Suspension's Texas facility
- Swift Springs and helper-spring upgrades available — contact us to add
16 Levels of Damping Adjustment
The Stance damping clicker gives a positive, audible click for each of the 16 levels of damping adjustment, so you can dial the ride from compliant street settings to firm track settings without losing your reference point. Each corner adjusts independently for precise chassis balance.
Inverted Monotube Damper
Originally developed for professional motorsports, the inverted monotube design uses a 45mm strut shaft for far greater lateral rigidity than competitors' 20mm upright dampers. Less shaft flex means consistent damping under heavy load, longer seal life, and exceptional ride comfort without sacrificing track performance.
Digressive Damping
Digressive valving produces high damping forces at low shaft velocities for sharp chassis control, and softer forces at high shaft velocities to absorb big bumps without unsettling the car. The result: better feel on transitions, more grip on rough surfaces.
Two-Stage Corrosion-Resistant Coating
Damper bodies are finished with a zinc phosphate pre-treatment plus an electrodeposited polymer coating engineered specifically for Stance coilovers. The finish has cleared 1,000+ hours of salt-spray testing — Stance's most durable corrosion protection to date.
Rebuildable & Revalvable for Life
Stance XR1 coilovers are 100% rebuildable and revalvable. As your driving evolves from street to track, send the same hardware back to Stance's Texas facility for service or custom valving. Buy once, upgrade as you grow.
Specifications
| Part Number | ST-JZS161-XR1 |
| Part Name | Stance XR1 |
| Vehicle | 1997-2005 Lexus GS400 |
| Chassis Code | JZS161 |
| Drivetrain | RWD |
| Damping Adjustment | 1-Way · 16 Levels |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 18 kg/mm |
| Spring Rate - Rear | 12 kg/mm |
| Upper Mount - Front | Solid pillowball |
| Upper Mount - Rear | Rubber |
| Damper Type - Front | Upright |
| Damper Type - Rear | Upright |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | True Coilover |
| Camber Plates - Front | Not Included |
| Camber Plates - Rear | Not Applicable |
| Notes | Swift Springs upgrade available for an additional $300.00 (pair). Contact us to add. |
Vehicle Fitment
- 1997 Lexus GS400 RWD (JZS161)
- 1998 Lexus GS400 RWD (JZS161)
- 1999 Lexus GS400 RWD (JZS161)
- 2000 Lexus GS400 RWD (JZS161)
- 2001 Lexus GS400 RWD (JZS161)
- 2002 Lexus GS400 RWD (JZS161)
- 2003 Lexus GS400 RWD (JZS161)
- 2004 Lexus GS400 RWD (JZS161)
- 2005 Lexus GS400 RWD (JZS161)





