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Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
The HKS Hipermax Adjustable Lowering Spring System is a height-adjustable spring kit designed to work with the GR Supra's stock adaptive damper system. It lowers the car up to 48 mm front / 57 mm rear (chassis-dependent) while retaining the factory electronic damping control. Variable-pitch barrel springs stabilise the body without requiring a full coilover swap.
Features
- Retains the factory adaptive (electronic) damper - no Suspension Error Canceler required
- Height-adjustable ride-height adjuster compatible with the stock lower spring seat
- Variable-pitch barrel spring design for improved body control
- HKS-developed rear bump rubber with improved durability for lowered applications
- HKS-developed dust boot included (stock boot is not compatible with the kit)
Fitment
- Toyota GR Supra (A90) - DB42 (RZ) - B58 - 2019 onwards
- Toyota GR Supra (A90) - DB02 (RZ) - B58 - 2020 onwards
- Toyota GR Supra (A90) - DB22 (SZ-R) - B48 - 2019 onwards
- Not compatible with GR Supra SZ grade
Notes
- Professional installation and a wheel alignment are required after fitting
- Modification of the bump rubber is required during installation
- A packer must be fitted when adjusting front thread length 24 mm or more
- Spring rates: front 43 N/mm (4.3 kgf/mm), rear 117 N/mm (11.9 kgf/mm); stock dampers are retained
- JDM product: any HKS certification applies to the Japanese market. Check your state's regulations before road use in Australia.
Specifications
- Part Number
- 80280-AT001
- Brand
- HKS
- Front spring rate
- 43 N/mm (4.3 kgf/mm)
- Rear spring rate
- 117 N/mm (11.9 kgf/mm)
- Front ride-height drop (DB42/RZ)
- -25 mm (factory preset); adjustable -25 to -48 mm
- Front ride-height drop (DB02/RZ)
- -29 mm (factory preset); adjustable -29 to -52 mm
- Front ride-height drop (DB22/SZ-R)
- -18 mm (recommended at test); adjustable -16 to -39 mm
- Rear ride-height drop (DB42/RZ)
- -20 mm (factory preset); adjustable -20 to -53 mm
- Rear ride-height drop (DB02/RZ)
- -24 mm (factory preset); adjustable -24 to -57 mm
- Rear ride-height drop (DB22/SZ-R)
- -19 mm (recommended at test); adjustable -19 to -52 mm
- Damper
- stock adaptive unit retained
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.