HKS 80300-AH003 Hipermax S Coilover Kit Full Adjustable Suspension System

The HKS Hipermax S Series represents the pinnacle of HKS suspension engineering, delivering exceptional driving comfort through evolved damping force characteristics, durability, and refined aesthetics. This complete coilover kit provides full height and damping adjustment for enthusiasts seeking the ultimate balance between street comfort and track performance.

Advanced Monotube Design:

• Single-tube monotube damper construction with separated gas and oil chambers
• Large diameter piston design for consistent, stable damping force
• Inverted strut design (front) for increased rigidity under high loads and lateral forces
• Reduced unsprung weight for improved handling response

Dual Preload Valve System (PVS):

• Evolution of the revolutionary preload valve technology from MAX IV GT 20Spec
• Revised damping force adjustment needle shape with expanded relief passage
• Enhanced oil flow control for superior ride quality across all driving conditions

Specifications:

• Spring Rate: Front 88 N/mm (9 kgf/mm), Rear 69 N/mm (7 kgf/mm)
• Free Height: Front 220mm (barrel), Rear 170mm
• Damper Force at 0.1m/sec: Front 814/333 (rebound/compression), Rear 304/284
• 30-position damping force adjustment (front and rear)
• Full-length adjustable height (front and rear)
• Front upper mount: Strengthened rubber, Rear: OEM compatible
• Default damper dial position: 15 clicks (front and rear)

Premium Components:

• Newly developed bump rubber combining flexibility and durability for smooth, natural ride quality
• Strengthened rubber upper mounts absorb vibrations while maintaining rigidity
• Low friction technology for enhanced durability and performance
• 3-year/60,000-mile warranty with overhaul capability

The Hipermax S Series delivers uncompromising performance that excels on both street and track, providing predictable handling, excellent ride comfort, and the peace of mind that comes from HKS's legendary quality and engineering excellence.