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Dial in a lower stance without giving up street comfort
HKS 80330-AT025 is the Hipermax S full suspension kit developed for the pre-facelift Toyota GR Yaris GXPA16. Its matched dampers and springs combine ride-height adjustment with 30-step damping control for drivers who want sharper response while preserving daily usability.
Key Features
- HKS 80330-AT025 provides 30 damping settings at both the front and rear.
- Height-adjustable lower brackets allow ride-height changes without relying only on spring preload.
- Inverted front dampers use the original upper mounts, while the rear uses rubber mounts.
- The front is a coilover layout and the rear uses a separate spring and damper.
- Published spring rates are 69 N/mm front and 59 N/mm rear.
Fitment
| Years | Vehicle | Configuration | Notes |
|---|---|---|---|
| September 2020-March 2024 | Toyota GR Yaris | GXPA16, G16E-GTS, 4WD | Pre-facelift only; excludes 2WD and April 2024-later models |
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | 80330-AT025 |
| Series | Hipermax S |
| Front spring rate | 69 N/mm (7 kgf/mm) |
| Rear spring rate | 59 N/mm (6 kgf/mm) |
| Damping adjustment | 30 steps front and rear |
| Front configuration | Inverted coilover; stock upper mount |
| Rear configuration | Normal damper; separate spring; rubber upper mount |
| HKS test ride-height change | Front -26 mm; rear -26 mm |
| HKS drivable adjustment range | Front 0 to -46 mm; rear 0 to -47 mm versus stock |
What's Included
- HKS 80330-AT025 front coilover assemblies
- Rear dampers, rear springs, and ride-height adjusters
- Application-specific washers, adjuster tools, and installation documentation
About HKS
HKS develops each Hipermax application around the target chassis, suspension geometry, and intended road use. HKS 80330-AT025 is assigned specifically to the first-generation GXPA16 GR Yaris before the 2024 model change.
Related Parts
- Application-correct adjustable end links
- Alignment hardware for the GXPA16 chassis
- HKS replacement dust boots and service components
FAQ
What is the 80330-AT025?It is the coilovers configuration described on this page for the verified application and included components.
Will this fit every version of the listed vehicle?No. Match the year, model, chassis, engine, drivetrain, transmission, and exclusions in the Fitment table before ordering.
Is professional installation recommended?Yes. Correct installation, torque procedures, system checks, and any required alignment or bleeding should be completed by a qualified technician.
Does the kit include everything shown in the fitment notes?The package contents are limited to the items listed under What's Included. Related or supporting parts are separate unless explicitly listed there.
Can this be used on a modified vehicle?Possibly, but existing modifications can change clearance, compatibility, calibration, or installation requirements. Inspect the full combination before installation.
What should be checked after installation?Check fastener torque, leaks or clearances where applicable, warning lights, fluid level or alignment as relevant, and inspect again after the initial break-in period.
Is the product universal?No. It is vehicle-specific and must be matched to the verified application above.
Where can I find the exact application limits?Use the Fitment and Specifications tables on this page. Those sections contain the verified model, configuration, and exclusion details.
Installation Instructions
- Measure the original ride height and record the alignment before removing the factory suspension.
- Transfer the specified original front upper-mount components and install each assembly in its designated position.
- Set ride height within the published HKS drivable range and torque every fastener to the installation-manual specification.
- Perform a four-wheel alignment, confirm tire and body clearance, and recheck fastener torque after break-in.
Important: HKS identifies this as the current replacement for 80300-AT025. The retailer image is used only after matching the unchanged vehicle application, spring rates, front stock-upper-mount layout, rear separate-spring layout, and HKS manual.
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