HKS HIPERMAX S Coilover Kit – Subaru WRX STI (2015-2021)
Code No.: 80300-AF009 | Engine: FA20
The HKS HIPERMAX S series is engineered for drivers who demand both comfort and high-performance handling. Built on decades of motorsport experience, the HIPERMAX S combines cutting-edge suspension technology with exceptional build quality to provide an unmatched driving experience—whether on spirited weekend drives, daily commutes, or track days.
Key Features
-
Dual Preload Valve System (PVS): Reduces unwanted damping force at high piston speeds, improving ride comfort without compromising handling.
-
Wide Range Damping Force Adjustment: Expanded needle jet design allows more fine-tuning to adapt to various road and track conditions.
-
Advanced Bump Stop Design: Newly shaped bump stop rubber reduces body roll and increases comfort beyond what conventional bump stops offer.
-
Low Friction Technology: Advanced tribology improves durability and minimizes internal friction for smoother operation and enhanced handling.
-
30 Levels of Adjustable Damping: Easily fine-tune for street, performance, or track setups.
-
Durable Construction: Features special oil, PNE coating, aluminum brackets, and rubber upper mounts for long-lasting reliability.
-
3-Year Warranty: Confidence backed by optimized internal parts and stringent quality control.
Technical Specifications
-
Spring Rate: Front 88 N/mm (9 kgf/mm), Rear 69 N/mm (7 kgf/mm)
-
Spring Length: Front 220 mm (Straight Barrel), Rear 170 mm (Straight)
-
Height Adjustment Range:
-
Front: -25 mm to -47 mm from factory height
-
Rear: -17 mm to -63 mm from factory height
-
-
Upper Mounts: Rubber (Front & Rear)
-
Spring Rate Changeability: ±10 N/mm (±1 kgf/mm) front & rear
-
Weight: 25.7 kg
-
Packing Dimensions: 565 × 290 × 410 mm
Vehicle Fitment
-
Make: Subaru
-
Model: WRX STI (4D)
-
Years: 2015-2021
-
Engine: FA20