Product Details
HKS Hipermax R coilovers for the 2021+ Toyota GR Yaris (GXPA16) are built for the track and the street. Developed over nine years since the MAX IV SP, the Hipermax R pairs an inverted monotube damper with HKS's exclusive Super Response Fluid (SRF) and Low Vibration Spring (LVS) to sharpen steering response, flatten cornering attitude, and hold damping consistent even after repeated heat cycles.
30-level damping adjustment, length-adjustable shock bodies and pillowball upper mounts set up the GXPA16 GR Yaris for track sessions or daily driving with the same parts. Every Hipermax R kit is built in Japan, backed by a 2-year / 40,000 km warranty, and fully rebuildable. It is the flagship HKS coilover.
Features
- Inverted monotube damper for strut-type applications, constant damper performance under load
- 30-level 1-Way damping adjustment dialed in via the WR Needle valve system
- Super Response Fluid (SRF): exclusive high-temperature-stable damper oil
- Low Vibration Spring (LVS): lightweight 210k-grade high-strength spring wire
- Dual Preload Valve System (Dual PVS): individually tuned per vehicle
- HIPERMAX-exclusive upper spring retainer for coaxial spring/damper alignment
- Pillowball upper mounts where applicable, zero deflection
- Length-adjustable shock body: lower ride height without pre-loading the spring
- PNE corrosion coating on threaded surfaces
- Advanced bump rubber: progressive load response, tuned for race pace
- DURA BOOTS heat, weather, and ozone-resistant dust boots
- 2-year / 40,000 km warranty
- Rebuildable / serviceable construction
- Made in Japan
Specifications
| Part Number | 80310-AT005 |
| Part Name | HKS Hipermax R Coilovers |
| Vehicle | 2021+ Toyota GR Yaris |
| Drivetrain | AWD |
| Chassis Code | GXPA16 |
| Country of Origin | Japan |
| Damping Adjustment | 30-Level 1-Way |
| Height Adjustable | Yes |
| Spring Rate - Front | 12.0 Kg/mm |
| Spring Rate - Rear | 16.0 Kg/mm |
| Spring Length - Front | 150mm |
| Spring Length - Rear | 170mm |
| Upper Mount - Front | Spherical bearing |
| Upper Mount - Rear | Spherical bearing |
| Ride Height Range - Front | -26mm (-1mm to -126mm) |
| Ride Height Range - Rear | -25mm (-2mm to -82mm) |
| Warranty | 2-year / 40,000 km |
| Notes | 4WD vehicles only; not compatible with post-2024 late model |