CUSTOM VALVING AVAILABLE
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Thunder Lane
TL-ONE Thunder Lane single Adjustable Coilover Kit for Mazda RX-8 (2003–2012)
$2,219.99
In Stock
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- Description
- Shipping and Refund
- Reviews
The Thunder Lane custom coilover system for the Mazda RX-8 is engineered for drivers who want a suspension that can be built around their goals—from HPDE and autocross to time attack and wheel-to-wheel. Every kit is assembled by hand and valved to match your tire, aero, and grip level.
Designed around usable stroke and predictable damping behavior, this kit delivers confidence at the limit without sacrificing mechanical grip over bumps, curbing, and transitions.
Built to Order — Tuned to Your Mazda RX-8
Each kit is built per order for 2003–2012. Spring rates, valving style, and overall setup are selected using your intended use, ride height goals, and available vehicle data (including corner weights when provided).
Track-focused damping with build-specific tuning
This system focuses on meaningful adjustability that’s easy to dial in at the track. Your damping configuration is selected during the build, then fine-tuned with on-car adjustment to balance grip, response, and stability.
What’s Included
- Electroplated shock bodies
- Rebuildable monotube dampers
- Long-stroke travel for real bump compliance
- 2.5″ linear springs
- Helper springs
- Customizable spring rates (front & rear)
- Micro-cellular polyurethane bump stops
- Digressive valving
- Front pillowball top hats
- Rear mounts with rubber isolation
Dyno documentation: Every kit includes individual shock dyno graphs (CVP and PVP) for transparency and repeatability.
Warranty: 3-Year Warranty.
Frequently Asked Questions
Is this kit built to order?
Yes. Spring rates and valving are configured per order based on intended use and ride height goals.
Can I choose spring rates?
Yes. Front and rear spring rates are selectable so we can match tire, grip level, and vehicle setup.
Are the shocks rebuildable and serviceable?
Yes. The dampers are fully rebuildable, with individual components available for long-term support.
Is this suited for track use?
Yes. The kit is designed around predictable damping, usable stroke, and digressive valving for high-performance driving.
We 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)
Due to high demand and a recent increase in new orders and rebuilds, all orders currently require a 3–4 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.
Order Processing & Tracking
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You’ll receive a confirmation email after placing your order.
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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.
