The Hipermax S uses an inverted monotube front strut and an upright monotube rear damper, each with 30 steps of damping force adjustment, and the left rear damper is adjusted remotely by cable. Spring rates are a street-friendly 6.0 kgf/mm front and 5.0 kgf/mm rear with a rear helper spring, and full-length shock body adjustment gives up to 75 mm of front drop and 12 mm to 85 mm of rear drop against stock ride height. Reinforced rubber upper mounts front and rear keep the ride civil on a chassis that is usually running far stiffer aftermarket parts. The S14 and S15 Silvia were never sold new in the United States, so HKS fitment data is drawn from the Japanese domestic market chassis.
Specifications
| Type | Hipermax S Full Coilover Kit |
| Position | Front and Rear (Full Kit) |
| Damper Type | Inverted monotube front, upright monotube rear |
| Damping Adjustment | 30 steps front and rear; left rear adjusted by remote cable |
| Spring Rate | 6.0 kgf/mm front (59 N/mm), 5.0 kgf/mm rear (49 N/mm) |
| Ride Height Adjustment | Full-length adjustable; stock to 75 mm lower front, 12 mm to 85 mm lower rear |
| Upper Mounts | Reinforced rubber, front and rear |
| Quantity | 1 kit (4 dampers, 4 springs) |
| Part Number | 80330-AN002 |
| Warranty | 3 Years / 60,000 km (HKS) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1993-1998 | Nissan | Silvia (S14) | SR20DE |
| 1993-1998 | Nissan | Silvia (S14) | SR20DET |
| 1999-2002 | Nissan | Silvia (S15) | SR20DE |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
