The Hipermax S is a full-length adjustable coilover kit built on a monotube damper with 30 steps of damping force adjustment at every corner, using an inverted front strut and an upright rear damper on this chassis. HKS sets the full kit at 9.0 kgf/mm in front and 7.0 kgf/mm at the rear on barrel-wound front springs, with helper springs at all four corners. Shock body length adjustment covers stock ride height down to 41 mm lower in front and 62 mm lower at the rear, so corner balance is set independently of spring preload. Reinforced rubber upper mounts are fitted front and rear, and the kit carries HKS Dual PVS valving, the WR Needle soft-range damping circuit, Advanced Bump Rubber and PNE corrosion-resistant plating.
| 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 |
| Spring Rate | 9.0 kgf/mm front (88 N/mm), 7.0 kgf/mm rear (69 N/mm) |
| Ride Height Adjustment | Full-length adjustable; stock to 41 mm lower front, stock to 62 mm lower rear |
| Upper Mounts | Reinforced rubber, front and rear |
| Quantity | 1 kit (4 dampers, 4 springs, 4 helper springs) |
| Part Number | 80330-AF009 |
| Warranty | 3 Years / 60,000 km (HKS) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2020 | Subaru | WRX STI (VAB) | EJ20 Turbo, 6-Speed Manual |
| 2014-2021 | Subaru | WRX S4 (VAG) | FA20 Turbo |
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Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
