At JXL Performance, we’re proud to introduce ST Suspensions. a brand that blends precision German engineering with real-world performance. Whether you're chasing sharper handling, a sportier stance, or full adjustability for track days, ST offers a solution that’s built to impress.
Founded in Southern California in the late 1970s and now part of the renowned KW Automotive Group, ST Suspensions has spent decades refining its craft. With roots in motorsport and a commitment to quality, ST products are manufactured in Germany to exacting standards, offering exceptional value without compromising performance
Check out our growing range of ST Suspension products here!
ST Sport Suspension Kits: Lowering Springs with Purpose
Our listed ST Sport Suspension Kits feature matched lowering springs and dampers designed to enhance your car’s dynamics while maintaining everyday comfort. Here’s what makes them special:
- Moderate, stylish lowering: Typically around 20–40mm depending on the vehicle, for a sleeker stance without sacrificing practicality.
- Improved handling: Lower centre of gravity reduces body roll and sharpens steering response.
- Vehicle-specific tuning: Progressive spring rates and twin-tube dampers are tailored to each model for optimal ride quality.
- Durable construction: Springs are made from multi-tempered chrome silicon steel with epoxy coating for long-term corrosion resistance.
These kits are ideal for drivers who want a sportier feel and look, without diving into full coilover territory.

ST Coilover Systems: X, XA, XTA & XTA Plus 3 Explained
ST’s coilover range offers something for every enthusiast, from daily drivers to track warriors. Here’s a breakdown:
|
Coilover System |
Height Adjustable |
Rebound Damping |
Compression Damping |
Top Mounts |
Ideal For |
|---|---|---|---|---|---|
|
ST X |
Yes |
No |
No |
No |
Street use with sporty stance |
|
ST XA |
Yes |
Yes (16 clicks) |
No |
No |
Tunable comfort vs sportiness |
|
ST XTA |
Yes |
Yes (16 clicks) |
No |
Yes (Unibal, camber adjustable) |
Track-ready with sharper handling |
|
ST XTA Plus 3 |
Yes |
Yes (16 clicks) |
Yes (24 clicks, high & low speed) |
Yes (Unibal, camber/caster adjustable) |
Maximum performance, full adjustability |
Each system is built with corrosion-resistant components, composite spring perches, and KW-grade dampers. The XTA Plus 3 stands out with its three-way adjustable damping, race springs, and full camber/caster control.
Note: The JXL Performance team are currently working on uploading the full ST coilover range to our website. If you’re keen to learn more or place an order, please contact us!

The Round Up:
ST Suspensions offers a compelling mix of quality, performance, and adjustability, whether you’re looking to subtly lower your daily driver or dial in your track setup. With KW engineering behind the scenes and a wide range of vehicle applications, it’s a brand we trust and recommend. Ready to upgrade your suspension?