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 GR86/GT86/BRZ TL-ONE Grip Kit is Thunder Lane's complete suspension solution for the shared Toyota/Subaru chassis — hand-assembled in Poland, pairing TL-ONE coilovers with adjustable front and rear sway bars so roll stiffness, spring rate, and damping all work as one system instead of mismatched parts.
Built for Racing, Time Attack, Autocross, and HPDE
Rather than relying on excessive spring rate, the Grip Kit is built around usable suspension travel and controlled roll stiffness so the car generates grip earlier and stays balanced mid-corner. 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
- TL-ONE monotube coilovers, front and rear
- 20-click rebound adjustment (application-specific)
- Ride Height Adjustment (fixed-length shock bodies preserve travel)
- Front and rear adjustable sway bars with adjustable end links
- Pillowball/spherical bearing upper mounts
- CVP + PVP dyno graphs included with every kit
Construction & Hardware
Check valves manage the split between compression and rebound for strong low-speed control without sacrificing bump compliance. Electroplated shock bodies and collars resist corrosion, and the full kit is rebuildable, serviceable, and re-valvable as tires, alignment, or focus change.
Fitment
Toyota GT86 (ZN6), Toyota GR86 (ZN8), Subaru BRZ (ZC6 & ZD8) — all share suspension architecture, tuned per generation.
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.
Why include sway bars with the coilovers?
Sway bars let roll stiffness be tuned independently of spring rate, improving grip and balance without sacrificing ride quality or travel.
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 GR86 / BRZ track build 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.