HKS 80330-AF020P Hipermax S Full Coilover Kit

The HKS 80330-AF020P Hipermax S is a complete, vehicle-specific coilover suspension kit engineered for the Subaru BRZ ZD8 (FA24, August 2021+). The Hipermax S represents the next generation of HKS street-performance suspension, evolving the acclaimed MAX IV GT platform with advances in damping force technology, durability, and refined aesthetics to deliver the best ride in HKS suspension history.

Tuned specifically for the ZD8 BRZ chassis, HKS re-evaluated spring rates from the ground up rather than carrying over previous-generation specs. A higher rear spring rate relative to the front — F=49 N/mm (5 kgf/mm) / R=59 N/mm (6 kgf/mm) — promotes rear stability and a predictable, confidence-inspiring balance. The Dual Preload Valve System (Dual PVS) suppresses unnecessary damping force at higher piston speeds, improving ride compliance without compromising cornering performance. Ride height is fully adjustable, with a front lowering range of 0 to -61mm and rear range of 0 to -64mm from stock.

Key Features:

• Inverted Monotube Damper Design — Separates gas and oil chambers for a large-diameter piston, delivering consistent and stable damping force
• Dual PVS (Preload Valve System) — Reduces unnecessary damping at high piston speeds for improved ride comfort with no loss of handling performance
• Wide-Range Damping Adjustment — Improved needle jet profile expands the adjustment range toward the softer end, allowing fine-tuned setup across a broad range of driving conditions
• Advanced Bump Stop Rubber — New-generation shape reduces body roll and maintains ride comfort, outperforming conventional hydro bump stop designs
• Low Friction Technology — Advanced tribology construction lowers internal friction for enhanced durability and smoother damping response
• Vehicle-Specific Spring Rates — F=49 N/mm / R=59 N/mm, with free length of 170mm (barrel) front and rear
• Full Ride Height Adjustment — Front: 0 to -61mm | Rear: 0 to -64mm from factory height
• 3-Year Warranty — Extended coverage versus the 1-year warranty of the previous MAX IV GT series, backed by HKS quality assurance

The HKS Hipermax S Full Coilover Kit is designed for enthusiasts who demand both daily-drivability and genuine performance capability. HKS part number 80330-AF020P.