ST Suspensions ST XA Coilover Kit

Part No: 18258004
With Adjustable Damping

*Please allow 5-10 days to build and ship*

The ST Suspensions ST XA Coilover Kit combines performance lowering with adjustable damping control — giving drivers the ability to fine-tune ride comfort and handling based on driving conditions.

Built with proven German engineering and durable galvanized steel construction, the ST XA delivers improved handling precision while maintaining everyday usability.

Key Features

• Damping Adjustment – Adjustable rebound/compression for customizable ride quality

• Height Adjustable – Lower your vehicle while preserving proper shock travel

• Galvanized Steel Construction – Corrosion-resistant and built for long-term durability

• Improved Handling Performance – Reduced body roll and sharper steering response

• Direct Bolt-On Fitment – Uses factory mounting points for easy installation

• Balanced Spring Rates – Optimized for street performance and daily comfort

Spring Rates

(Typically matched for the platform — if you’d like, I can confirm exact rates for this part number separately.)

Common setup for the BRZ/86 platform:

• Front: ~230 lbs/in (≈ 4.11 kg/mm)

• Rear: ~285 lbs/in (≈ 5.09 kg/mm)

Fitment

Compatible with:

• 2013–2026 Subaru BRZ

• 2013–2020 Scion FR-S / Toyota GT86

• 2022+ Toyota GR86

Performance Benefits

The ST XA gives you the advantage of adjustable damping — allowing you to soften the ride for daily comfort or stiffen it for more aggressive driving and track use — all while maintaining height adjustability and reliable performance.