ST Suspension
ST | Coilover suspension X/XA/XTA/XTA plus 3 | GT/GR86 BRZ I&II
ST | Coilover suspension X/XA/XTA/XTA plus 3 | GT/GR86 BRZ I&II
- Short-term order goods (approx. 7-14 days shipping time)
You will receive €19,50 Guthaben when you purchase this item.
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ST Suspensions – Coilover suspension kits for GT86 / BRZ
Developed by KW Automotive – tuned for street, sport and track.
ST Suspensions is part of the KW Automotive Group and uses its proven technology – however, in galvanised housings (instead of stainless steel as with KW) and with a focus on sporty, but everyday usable performance.
Four variants are available for the Toyota GT86 / Subaru BRZ: ST X , ST XA , ST XTA and ST XTA Plus 3 .
Comparison table – technical overview
| Model | Damper adjustment | Strut mount / camber adjustment | Damper technology | Main focus of operations | material | Special features |
|---|---|---|---|---|---|---|
| ST X | Non-adjustable (fixed kW setting) | Series Dome | Twin-Tube | Everyday life / sporty street | Galvanized steel | Entry into the ST program, same lowering as XA/XTA |
| ST XA | Adjustable rebound damping (16 clicks) | Series Dome | Twin-Tube | Road / dynamic driving style | Galvanized steel | Noticeably more direct, adaptable comfort |
| ST XTA | Adjustable rebound damping (16 clicks) | Aluminum uniball top mount (front) with camber adjustment | Twin-Tube | Road + occasional track | Galvanized steel | More precise steering geometry, better feedback |
| ST XTA Plus 3 | Rebound and compression damping separately adjustable (low/high-speed) | Uniball dome bearing (front) | KW 3-Way Technology (Monotube) | Track / Race track / ambitious road use | Galvanized steel | Significantly more sensitive tuning, true club sport level. |
Detailed description of the variants
ST X – The basis for everyday use and subtle tuning
The ST X is the entry point into the world of coilover suspension. It features a fixed, sporty-comfortable damper setting (KW development), the same lowering as the XA/XTA, but without adjustment options.
Ideal if you want a clean look and noticeably more stable handling, but don't need any fine-tuning of the setup.
Conclusion: perfect for the daily driver who simply wants to drive "lower and better" – without complexity.
ST XA – The adjustable all-rounder
The ST XA also offers 16-way adjustable rebound damping . This allows the ride comfort to be individually adjusted between soft (everyday) and firm (sporty riding).
Mechanically identical to the X, but significantly more versatile – especially for drivers who use their car between city, country roads and highways.
Conclusion: ideal if you want comfort in everyday life, but also like to drive sportily on weekends.
ST XTA – For ambitious drivers with setup requirements
The ST XTA combines the damper adjustment of the XA with front uniball top mounts including camber adjustment. This allows for optimization of the front geometry – particularly noticeable when cornering.
Designed for drivers who regularly drive dynamically or participate in track days without needing an uncompromising racing suspension.
Conclusion: the ideal middle ground between road and track – sporty, direct, robust.
ST XTA Plus 3 – Motorsport technology with road approval
The ST XTA Plus 3 utilizes KW technology from the V3 Clubsport series: separately adjustable rebound and compression damping (low & high speed) , uniball top mounts and sensitive damping behavior.
This suspension is aimed at drivers who are looking for the limit, regularly drive on track days, or want a setup that can be adapted to tires, tracks, and weather.
Conclusion: Uncompromisingly precise – the best ST suspension for experienced drivers or track tools with road approval.
Quick decision guide – When to choose which suspension system?
| Driver type | Recommendation | Reason |
|---|---|---|
| For everyday drivers, appearance and comfort are important. | ST X | Plug & Play, no setup required, solid performance |
| Sporty on the road, comfort-conscious | ST XA | Variable rebound damping, ideal compromise |
| Track beginner / Dynamically on the go | ST XTA | Adjustable & with fall correction – noticeably more precise |
| Track enthusiast/setup professional | ST XTA Plus 3 | Finely adjustable, maximum performance, true racing DNA |
Conclusion
All ST suspension kits for the GT86/BRZ offer KW technology at a more attractive price , with a clear differentiation between everyday comfort and track performance.
Anyone looking for a "install and you're done" solution will be very well served by the ST X.
Those who want a balance of comfort and dynamism should choose the XA .
For those who regularly drive in a sporty manner, the XTA is the best investment.
And for those who want to get the maximum performance, the XTA Plus 3 is the suspension system that will let you annoy the KW drivers on the track.
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