The HKS HIPERMAX S GDB(A-D) Full Kit is uniquely designed to aim for a more pleasurable handling performance and comfy ride. We evolved the existing preload valve system to the dual preload valve system to suppress the generation of unnecessary damping force during higher piston speeds. This provides major improvement in ride comfort without influencing the driving performance. The enhanced shape of the Needle jet expand the range of damping force adjustment. This makes us possible to handle driving on a wider range of stages. A new shape bump stop rubber reduces the body roll and achieves ride comfort at the same time which cannot be achieved with general hydro bump stop rubber. Also, with the advanced tribology technology, we have achieved even higher durability and lower friction thtan conventional products. This technology contributes to improved ride quality and handling performance. HIPERMAX S Series has a three-year warranty due to the optimization of internal parts and quality improvement.
APPLICATIONS
- Impreza WRX STI 4D (2004)
- Impreza WRX 4D (2002, 2003, 2004, 2005, 2006, 2007)
- Impreza WRX 5D (2002, 2003, 2004, 2005, 2006, 2007)
FEATURES
- Dual PVS
- Wide Range damping force adjustment mechanism
- Evolution of Bump stop rubber
- Low Friction Technology
- 3-year warranty
Customer Reviews
Customer Questions
RETURN & CANCELATION POLICY | INTERNATIONAL DUTIES AND TAXES
In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).
Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.
INTERNATIONAL DUTIES AND TAXES
All international orders outside of the USA are subject to duties and taxes per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

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