HKS 80330-AN002P Hipermax S Full Coilover Suspension Kit

The HKS 80330-AN002P Hipermax S is a complete full-kit coilover suspension system engineered for the Nissan Silvia S14 and S15 platforms. As the successor to the long-running HIPERMAX IV GT series, the Hipermax S represents the most advanced street-oriented coilover HKS has produced, incorporating nearly a decade of suspension development into a single refined package.

Key Features:

• 30-Step Damping Adjustment (Front & Rear) – Wide-range needle jet redesign expands the usable damping window for both daily street driving and spirited use
• Inverted Front Damper Layout – Reduces unsprung weight and improves heat dissipation for consistent damping performance
• Dual Preload Valve System (Dual PVS) – Suppresses unnecessary damping force spikes at higher piston speeds, delivering measurably improved ride comfort without sacrificing handling response
• PNE Corrosion-Resistant Coating – Provides 5x better durability compared to standard galvanizing, protecting against rust and corrosion for long-term reliability
• Redesigned Bump Stop Rubber – New profile reduces body roll and maintains ride comfort simultaneously, outperforming conventional hydro bump stop designs
• Low Friction Technology – Advanced tribology-based internal components deliver lower friction and higher durability than previous-generation units
• Strengthened Rubber Upper Mount – Absorbs minor NVH and road vibration while improving mount rigidity over stock
• Height-Adjustable Lower Bracket – Front and rear ride height independently adjustable via lower bracket; rear also includes helper spring (19.8 N/mm)
• Full Kit Spring Rates – Front: 59 N/mm (6 kgf/mm) / Rear: 49 N/mm (5 kgf/mm)
• Ride Height Adjustment Range – Front: 0 to -73 mm / Rear: -12 to -85 mm from stock
• 3-Year Warranty – Tripling the coverage of the previous MAX IV GT series, backed by in-house quality control and extensive durability testing

The Hipermax S delivers a balanced combination of street-friendly compliance and performance-oriented handling precision. Machined aluminum top mounts add a refined, high-quality appearance, while the comprehensive damping adjustment range ensures the suspension can be dialed in for any driving style. This kit is a direct-fit replacement coilover solution that installs in place of the factory suspension components.