CUSTOM VALVING AVAILABLE
Sale
CODE: TL-ONE-NISSAN-370Z-1W-FAU-TR
Categories: Featured Builds, Infiniti, Nissan, TL-ONE
BUILT IN-HOUSE IN POLAND
4-6 WEEK LEAD TIME
- Description
- Shipping and Refund
- Reviews
Built to order. Not sure which spec you need? Spec your build with us →
The Nissan 370Z/Infiniti G37 TL-ONE Coilover System is Thunder Lane's build-to-order true rear coilover — hand-assembled in Poland and proven in real SCCA and NASA Time Trial competition, with a wider rear ride height range and easier adjustment than a divorced spring setup.
@nismozeta's 370Z Nismo at Tor Kielce, Poland
On track
Raced in Poland, where the kits are built
@nismozeta's 370Z Nismo runs TL-ONE in Poland and competes in GT Series track days and Time Attack Poland events, with onboards on his YouTube and Instagram.
The same kit design goes on street, HPDE, time attack and autocross cars. What changes is the valving and the spring rates, which we settle with you before anything is built.
True rear coilover
Spring on the damper, not the toe arm
The rear spring sits on the shock instead of in the factory bucket on the toe arm. You get a much wider rear ride height range, easier adjustment, slightly less unsprung weight, and the toe arm is freed up for an adjustable straight-rod replacement.
It changes the motion ratio rather than improving it, so we size the rear spring rate to match.
Adjustment
20 clicks of rebound, set from the top
One knob per corner. Check valves keep the clicker working mainly on rebound, so you can firm the car up for a session and back it off for the drive home without changing much about how it takes bumps.
Spherical bearing top hats replace the factory rubber mounts.
Construction
Built to your ride height, built to be rebuilt
The 46mm monotube bodies are made to the ride height you give us, so the shock keeps usable travel where you actually run the car. CNC-machined top hats and lower forks, electroplated bodies and collars, and dyno sheets with every set.
Every kit is fully rebuildable and re-valvable as tires, aero or use case change, with a path to a 3-way remote-reservoir upgrade later.
G37 #50 at speed, NCCAR (photo: Rogo Photo)
Z34 and V36
A G37 isn't a 370Z
The G37 is longer, heavier and has more weight over the rear than the 370Z, so a G doesn't leave with a Z's rear setup. Every kit is specced for one car and one driver: chassis, weight, tires, ride height and how you use it.
Built for Racing, Time Attack, Autocross, and HPDE
Each kit is built around your intended use, with proven baseline spring and valving combinations — Track/Race, Street/Track, Comfort, and Drift — as starting points, not off-the-shelf limits. 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
- 46mm monotube dampers, true rear coilover configuration
- 20-click rebound adjustment (1-way)
- Ride Height Adjustment (fixed-length shock bodies, matched to your target ride height)
- Spring/valving baselines: 20k F/8k R (Track/Race), 16k F/7k R (Street/Track), 14k F/6k R (Comfort), 16k F/10k R (Drift)
- Pillowball/spherical bearing top hats
- Dyno sheets included with every kit
Construction & Hardware
CNC-machined top hats and bottom forks pair with electroplated shock bodies and collars for long-term corrosion resistance. Every kit is fully rebuildable, serviceable, and re-valvable — with a path to upgrade to a 3-way adjustable remote-reservoir system later.
Fitment
Nissan 370Z and Infiniti G37 — exact configuration confirmed during the build.
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.
What does "true rear" coilover mean on a 370Z/G37?
A true rear coilover mounts the rear spring on the damper instead of in the factory spring bucket on the toe arm. The motion ratio is different, not better, so the rear spring rate is lower for the same wheel rate. The benefits are a much wider rear ride height range, easier adjustment, the option to run an adjustable straight-rod toe arm, and slightly less unsprung weight. True rear vs OEM-style rear, explained.
Do I need to know my corner weights before ordering?
No — helpful but not required. We can tune the kit using vehicle weight, tire size, ride height, and sway bar configuration.
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.
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 Nissan 370Z / Infiniti G37 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.
Not sure which spec you need?
Every set is valved for one car and one driver. Send a short brief and we'll come back within 24 hours with a spring rate range and a valving direction for your setup. Free, no commitment.
Support after your set arrives
At the track
At-track support and coaching
Anthony can join you at an event, drive or ride along in your car, and help you set it up.
Request track support →In Raleigh, North Carolina
Install, corner balancing and alignment
Offered by Rob Keehner at Beaver Marsh Calibration. Rob has been racing and building race cars for over 20 years.
Request install or alignment →
