Balanced daily comfort with real back-road capability.
Designed to lower your 430 by approximately 25–30 mm while maintaining composure over real-world roads, the Spec-S sharpens turn-in and body control without beating you up on the commute.
Dežru Spec-S Coilovers – Ferrari F430
The Dežru Spec-S coilover system is engineered specifically for the Ferrari F430, a front-mid-engine V8 platform that rewards precision, balance, and chassis control. Designed around the F430’s suspension geometry and weight distribution, the Spec-S enhances stability and feedback while preserving the car’s naturally engaging character on the street.
Developed for drivers who enjoy their F430 on real roads but still participate in spirited driving and HPDE track days, the Spec-S features digressive piston valving that delivers strong low-speed control during braking, turn-in, and transitions, while remaining compliant over imperfect pavement. This tuning philosophy avoids excessive race stiffness and instead targets a balanced ride frequency in the ~2.0–2.2 Hz range, providing confidence and composure without harshness.
Fixed-length damper bodies paired with a 30–45 mm adjustable lowered ride height maintain proper suspension stroke and geometry. This ensures usable bump travel and consistent roll behavior, allowing the F430 to remain predictable and stable when driven aggressively.
Key Features
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Digressive monotube dampers for precise chassis control, consistent damping performance, and clear driver feedback.
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Fixed-length damper bodies with 30–45 mm adjustable lowered ride height to preserve geometry and usable suspension travel.
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Adjustable damping to fine-tune rebound for street driving, canyon roads, or track use.
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700 lb/in front and 900 lb/in rear spring rates, carefully selected to balance front-end precision with rear stability on the F430 platform.
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Linear HyperCoil springs for predictable load transfer and smooth, consistent response throughout suspension travel.
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OEM-style upper mounts to minimize NVH while maintaining proper fitment and alignment stability.
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Hand-built, dyno-matched pairs to ensure precise left-to-right damping consistency.

Performance Character
The Spec-S refines the Ferrari F430’s balance by reducing excessive body motion while preserving compliance and traction. The digressive damping profile provides firm, supportive control during initial inputs and transitions, paired with controlled compliance that keeps the tires planted as cornering and braking loads increase.
The result is a flat, stable, and confidence-inspiring driving experience that remains comfortable for street use while delivering predictable, composed behavior when pushed hard on track.