HKS 80330-KN001 Hipermax S Series Coilover Suspension Kit

The HKS Hipermax S Series (80330-KN001) is a premium coilover suspension system engineered for Nissan/Infiniti applications, representing the next evolution of HKS's legendary street-performance suspension lineup. Succeeding the acclaimed MAX IV GT series after nine years, the Hipermax S incorporates a full suite of advanced technologies to deliver a superior balance of ride comfort and dynamic handling performance.

Key Features:

• Dual PVS (Preload Valve System): HKS's evolved dual preload valve system suppresses unnecessary damping force generation at higher piston speeds, delivering a major improvement in ride comfort without sacrificing driving performance
• Single-Tube Monotube Damper Design: Separates the gas and oil chambers to allow use of a larger diameter piston, producing consistent, high-quality damping force under all conditions
• Wide-Range Damping Force Adjustment: An improved needle jet geometry expands the range of damping force adjustment, enabling fine-tuning across a broader spectrum of driving styles and road conditions
• Evolution of Bump Stop Rubber: Redesigned bump stop rubber reduces body roll and improves ride comfort simultaneously — an achievement not possible with conventional hydro bump stop designs
• Low Friction Technology: Advanced tribology technology reduces internal friction versus previous-generation products, contributing to improved ride quality, handling response, and long-term durability
• Strengthened Rubber Upper Mounts: Absorb minor road vibrations while providing a firmer, more precise connection than stock upper mounts for improved steering feel
• Full Kit Configuration: Includes front and rear coilover assemblies with HKS-tuned spring rates optimized for the specific application
• 3-Year Warranty: A significant upgrade over the 1-year warranty of the MAX IV GT series, backed by improved internal components and quality control
• Overhaul Support: HKS offers rebuild/overhaul service to extend product life well beyond the initial installation

The Hipermax S Series embodies HKS's Kodawari philosophy — a Japanese concept representing obsession for perfection and unwavering attention to detail. Whether used for daily commuting, weekend canyon runs, or spirited track days, the HKS 80330-KN001 delivers a ride quality that sets a new benchmark in HKS suspension history.