A collaboration between String Theory Garage, JCR Developments and Eibach — this height-adjustable spring kit is the definitive entry-level suspension upgrade for the Toyota GR Yaris. Lower the car, sharpen the handling, and do it without sacrificing the daily usability that makes the GR Yaris so special.
We sell a lot of coilover kits, but this spring kit exists because not everyone needs (or wants) full damper adjustment. If you want a meaningful, lasting improvement to how your Yaris drives — without the complexity or cost of a full coilover setup — this is where we'd start.
Key features
Adjustable ride height — lower than standard with multiple positions available
Eibach springs: progressive-rate, made in Germany to OEM+ standards
Developed specifically for the GR Yaris — not an adapted fitment from another car
Compatible with standard GR Yaris dampers — no damper change required
Significant reduction in body roll and improvement in turn-in response
Retains suitable travel for road and light track use
Fitment
Compatible with: Toyota GR Yaris Gen 1 (2020–2024). Works with OEM dampers. If you are already running aftermarket dampers, contact us to confirm compatibility.
Options
Parts only — Springs supplied for self-fitting or fitting by your own workshop
Parts fitted, setup, corner-weighted & aligned — We fit the kit at our premises, corner-weight the car on our corner-weight scales, and set the alignment to our recommended road/track settings. This is the option we'd recommend if you want to get the most from the upgrade.
This kit is the result of real-world development on our own GR Yaris fleet and through customer cars. It's one of the most cost-effective handling upgrades available for the platform — and the fitting option with corner-weighting and alignment represents genuine value when you factor in what those services would cost separately.
Questions about this kit or which option is right for you? We're happy to talk through your use case — road, track, or both.
