Both ends use an upright monotube damper with 30 steps of damping force adjustment, with the left rear dial moved to a remote cable. HKS ships this kit at 8.0 kgf/mm front and 6.0 kgf/mm rear on helper springs at all four corners, and full-length shock body adjustment gives 10 mm to 74 mm of front drop and 7 mm to 74 mm of rear drop against stock ride height. Reinforced rubber upper mounts are used front and rear, with Dual PVS valving and PNE corrosion-resistant plating. HKS lists this part number for turbocharged RB25DET cars only and states that it cannot be fitted to the naturally aspirated ER34, which was a Japanese market model.
Specifications
| Type | Hipermax S Full Coilover Kit |
| Position | Front and Rear (Full Kit) |
| Damper Type | Upright monotube, front and rear |
| Damping Adjustment | 30 steps front and rear; left rear adjusted by remote cable |
| Spring Rate | 8.0 kgf/mm front (78 N/mm), 6.0 kgf/mm rear (59 N/mm) |
| Ride Height Adjustment | Full-length adjustable; 10 mm to 74 mm lower front, 7 mm to 74 mm lower rear |
| Upper Mounts | Reinforced rubber, front and rear |
| Fitment Notes | RB25DET turbo models only; cannot be fitted to naturally aspirated cars |
| Quantity | 1 kit (4 dampers, 4 springs, 4 helper springs) |
| Part Number | 80330-AN005 |
| Warranty | 3 Years / 60,000 km (HKS) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998-2001 | Nissan | Skyline (ER34) | RB25DET Turbo |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
