CUSTOM VALVING AVAILABLE
Sale
BUILT IN-HOUSE IN POLAND
3-4 WEEK LEAD TIME
- Description
- Shipping and Refund
- Reviews
Built to order. Not sure which spec you need? Spec your build with us →
The Supra A90 TL-ONE Coilover System is Thunder Lane's track-focused single-adjustable coilover for the Toyota GR Supra A90 — hand-assembled in Poland and bespoke-valved to your car, tires, and goals. Every set ships with inverted front struts and rear shocks, 20-click rebound adjustment, and Independent Ride Height and Travel Adjustment for a true target ride height without riding the bump stops.
Built for Racing, Time Attack, Autocross, and HPDE
The A90's stock geometry and heavy curb weight reward a coilover that controls weight transfer without going harsh. TL-ONE is valved around that balance, and every kit can also be valved specifically for street use — the compliance needed for competent track use often makes for a comfortable street ride, since controlling the platform better also controls body motion better on the street.
Technical Specs
- Inverted front struts / inverted rear shocks, 36mm piston / 40mm body
- 20-click rebound adjustment (1-way)
- Independent Ride Height and Travel Adjustment
- Front 8kg / Rear 16kg linear springs (standard; custom rates available)
- Spherical bushing top hats
- CVP + PVP dyno graphs included with every kit
Construction & Hardware
Check valves manage the split between compression and rebound so the car stays planted at low speed without losing bump compliance. Inverted damper bodies are electroplated for corrosion resistance, and every kit is fully rebuildable — replacement internals are available as tires, alignment, or use case change.
Fitment
Toyota GR Supra A90, all trims.
Frequently Asked Questions
What's the lead time?
4–6 weeks, built to order.
What's the warranty?
6 months — void for track damage, covers unreasonable wear and defects only.
Is this streetable?
Yes — every kit can be valved specifically for street use if that's your preference. Even with track-oriented valving, the compliance needed for competent track use often makes for a comfortable street ride, since controlling the platform better also controls body motion better on the street.
Are the shocks rebuildable?
Yes, fully serviceable with individual replacement parts.
Racing Thunder Lane suspension in Time Attack, Hill Climb, or wheel-to-wheel? Ask about product credit through our contingency program.
Want the full breakdown for your chassis? Read the Toyota GR Supra A90 coilover buying guide.
Not sure which spec you need?
Tell us the chassis, how the car is built, and how you use it. We spec the kit before anything is assembled.
Spec your build with usWe build every suspension set to order and want you to know exactly what to expect from checkout to delivery.
Build Lead Time (Made-to-Order)
Because every set is machined and assembled for one specific car, most orders require a 4–6 week lead time to machine hardware and complete assembly.
Every set is built 100% in-house in Kraków, Poland—no outsourced assembly, no pre-built inventory.
Shipping Time to the United States
Once your order is complete and ready to dispatch, typical shipping time to the U.S. is 5–10 business days.
Transit time can vary slightly depending on carrier, customs processing, and your location.
Where We Ship
We currently ship to the United States, Canada, Mexico, and Central America, with free shipping to every destination we serve.
Order Processing & Tracking
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You’ll receive a confirmation email after placing your order.
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We’ll reach out to confirm your build spec—spring rates, valving, and ride height—before production begins.
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When your order ships, you’ll receive an email with tracking information.
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If your order includes multiple items, they may ship together or separately depending on production status.
Important Notes
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Lead times are estimates and may change based on current workload, parts availability, or production volume.
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Business days do not include weekends or holidays.
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International shipments may experience customs-related delays outside of our control.
Need Help?
If you have a deadline (event, track day, or travel schedule) or want an update on your order, contact us and we’ll do our best to help you plan accordingly.
