Balanced daily comfort with real back-road capability.
Designed to lower your car 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 – Porsche 997 Carrera (C2)
The Dežru Spec-S coilover system is engineered specifically for the Porsche 997 Carrera C2, a rear-engine sports car that demands careful balance between chassis support, rear traction, and ride compliance. Designed around the 997’s suspension geometry, rear weight bias, and dual-purpose street performance intent, the Spec-S delivers a substantial improvement in stability, confidence, and overall composure without sacrificing daily usability.
Developed for drivers who daily their 997 but still enjoy spirited street driving, mountain roads, and occasional HPDE track days, the Spec-S features digressive piston valving that provides strong low-speed support during braking, turn-in, and transitional maneuvers, while remaining compliant over rough pavement and surface irregularities. Rather than chasing excessive stiffness, this setup targets a balanced ride frequency in the ~1.9–2.2 Hz range, improving control and feedback while preserving ride quality expected from a road-driven Porsche.
Fixed-length damper bodies paired with a 25–30 mm adjustable lowered ride height ensure proper suspension stroke and geometry are maintained. This preserves usable bump travel and predictable roll behavior, allowing the 997 C2 to remain stable and confidence-inspiring under both daily driving and aggressive use.
Key Features
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Digressive monotube dampers for controlled body motion, consistent damping performance, and clear steering feedback.
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Fixed-length damper bodies with 25–30 mm adjustable lowered ride height to preserve suspension geometry and usable travel.
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Adjustable damping to fine-tune rebound for daily driving, back-road use, or HPDE track events.
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250 lb/in front and 450 lb/in rear spring rates, selected to stabilize the rear-engine layout while maintaining front grip and steering precision.
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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 reduce NVH while maintaining proper fitment and alignment consistency.
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Hand-built, dyno-matched pairs to ensure precise left-to-right damping consistency.

Performance Character
The Spec-S transforms the Porsche 997 C2 by reducing excess body motion and improving stability without dulling the car’s natural balance and steering feel. The digressive damping profile delivers immediate support during initial inputs while maintaining controlled compliance that keeps the tires planted as grip levels rise.
The result is a Porsche 997 C2 that feels composed, predictable, and confidence-inspiring, remaining comfortable for daily driving while delivering the control and feedback needed for aggressive street and track use.
