CUSTOM VALVING AVAILABLE
Sale
Thunder Lane
Subaru Impreza GC8 TL-PRO Coilover System (1992–2000)
$5,295.00
In Stock
Pre-Order
Sold out
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 Subaru Impreza GC8 TL-PRO Coilover System is Thunder Lane’s flagship true 3-way adjustable coilover for the Subaru Impreza GC8 — hand-assembled in Poland for drivers who demand maximum control, consistency, and tuning flexibility. This kit is a long-stroke, rally-oriented build.
Built for Racing, Time Attack, Autocross, and HPDE
Independent rebound, low-speed compression, and high-speed compression let you tune mechanical grip and platform support without introducing unnecessary harshness — critical for high-grip tires and long sessions. Every kit can also be valved specifically for street use, since controlling the platform better also controls body motion better on the street.
Technical Specs
- Inverted (upside-down) 46mm pistons front and rear
- 62mm body diameter for a long-stroke rally build
- 20-click rebound adjustment
- 34-click low-speed compression, 18-click high-speed compression
- Swift springs with helper springs, rebuildable construction
- Remote reservoirs with customizable hose length
- Spring rates finalized in consultation with you before production begins
- CVP + PVP dyno graphs included with every kit
Construction & Hardware
Remote reservoirs increase oil volume and improve heat management, maintaining consistent damping during long sessions. Check valves manage the split between compression and rebound for strong low-speed platform control, and every damper is fully rebuildable, serviceable, and re-valvable.
Fitment
Subaru Impreza GC8, 1992–2000, including WRX and STI variants. This is a long-stroke, rally-oriented kit built for gravel and tarmac stage use.
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 does this kit use remote reservoirs?
Remote reservoirs increase oil volume and improve heat management, maintaining consistent damping during long sessions, with customizable hose length for a clean install.
Is this streetable?
Yes — every kit can be valved specifically for street use if that’s your preference.
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 Subaru Impreza GC8 suspension 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.
