HKS 80330-AT027P Hipermax S Coilover Full Kit with Pillow Ball Upper Mounts

The HKS Hipermax S (80330-AT027P) is a full coilover suspension kit featuring front pillow ball upper mounts, purpose-built for the Toyota GR86 ZN8 with the FA24 engine. As HKS's next-generation street coilover lineup, the Hipermax S series evolves everything from damping characteristics and internal construction to aesthetics — delivering what HKS calls the best ride in the company's suspension history.

This kit was developed specifically for the ZN8 GR86 chassis. Rather than simply carrying over settings from a previous model, HKS re-tuned the entire system to suit the GR86's improved body and suspension geometry. The result is a coilover that excels from daily commuting to spirited driving on high-performance tires.

Key Features:

• Inverted Monotube Design — Delivers consistent, stable damping feedback and improved heat dissipation during aggressive driving
• Dual PVS (Preload Valve System) — Evolved from the single PVS to suppress unnecessary damping force at higher piston speeds, significantly improving ride comfort without sacrificing handling performance
• WR Needle (Wide Range Damping Adjustment) — Redesigned needle jet geometry expands the range of damping force adjustment across all 30 front and 30 rear clicks, allowing tuning from relaxed street use to performance-oriented driving
• Pillow Ball Upper Mounts (Front) — Aluminum upper mounts with pillow ball bearings for sharper steering response and more precise suspension feedback compared to rubber-based alternatives
• Optimized Spring Rates — Front: 49 N/mm (5 kgf/mm) / Rear: 64 N/mm (6.5 kgf/mm); rear rate is intentionally set higher than front for improved stability and balance
• Ride Height Adjustability — Front: 0 to -56 mm / Rear: 0 to -61 mm from factory height
• Low Friction Technology — Reduces internal resistance for smoother suspension action over fine road imperfections
• Improved Bump Stop Rubber — Refined bump stop design minimizes harshness at full compression
• Full Kit — Includes all four corners with coilovers and hardware for a direct bolt-on installation

Specifications:

• Spring Rate — Front: 49 N/mm (5 kgf/mm) / Rear: 64 N/mm (6.5 kgf/mm)
• Length Freedom (Barrel) — Front: 220 mm / Rear: 250 mm
• Damping Force at 0.1 m/sec — Front Extension/Compression: 392 N / 387 N — Rear Extension/Compression: 432 N / 495 N
• Damping Adjustment — 30 steps (front and rear)
• Vehicle Height Adjustment — Front: 0 to -56 mm / Rear: 0 to -61 mm
• Warranty — 3-year limited warranty

The HKS Hipermax S 80330-AT027P is the definitive suspension upgrade for the GR86 ZN8 owner seeking a refined balance of street comfort and track-ready performance, backed by over 30 years of HKS suspension development expertise.