The HKS HIPERMAX S is HKS’s street-performance flagship: engineered for maximum grip and composure without sacrificing daily drivability.
Technical Highlights
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Monotube damper with large-diameter piston for consistent damping and heat stability
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30-step damping adjustment with wide-range needle circuit for precise low-speed control
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Dual PVS valve system to reduce harsh high-speed compression over sharp impacts
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Vehicle-specific spring rates & bump stop tuning for predictable stroke control
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Typically rubber upper mounts (application dependent) to minimize NVH
Performance Profile
Crisp turn-in, reduced body roll and pitch, and excellent mid-corner stability—while maintaining compliance over real-world pavement. Ideal for street-driven cars that see spirited driving and occasional track use.
Best For:
Daily drivers, canyon runners, and enthusiasts who want measurable handling gains without excessive noise or ride stiffness.
When to Step Up to HKS HIPERMAX R
The HKS HIPERMAX R is tuned for higher-intensity driving and repeated load cycles.
What Changes
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SRF (Super Response Fluid) for improved damping consistency under heat
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Higher-rate spring package (LVS) for sharper transient response
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Often equipped with pillowball upper mounts for maximum steering precision
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Designed for higher grip levels and sustained track use
Best For:
Frequent track days, time attack builds, aggressive tire setups, and drivers prioritizing response and limit behavior over ride comfort.
Quick Buyer Guidance
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Street-focused performance build? → HIPERMAX S
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Track-biased or competition-driven build? → HIPERMAX R
If you’re unsure, choose based on usage - not ego. The right damper for your driving style will always outperform an overbuilt setup.