The result is the Hipermax IV GT Spec-A, with revised spring rates and dampening. Using the expertise of Arai-san, a stiffer spring rate but longer length paired with softer dampening creates a more comfortable and natural ride without the loss in performance (similar to the coilovers used in Rally Racing). Likewise, they address the GDB's issue of understeer to improve overall performance!
- 2005 Subaru Impreza WRX STi [GDB-E]
- 2006 Subaru Impreza WRX STi [GDB-F]
- 2007 Subaru Impreza WRX STi [GDB-G]
Note: Does NOT Work on 05-07 WRX! Needs 5x114.3 pattern.
- Special Edition: Tuned by Rally Champion Toshihiro Arai
- Spec-A: more comfortable/natural ride without loss in performance
- Hiper Linear Monotube Piston: As piston speed increases, dampening rate linearly increases
- Standard 65mm diameter springs: Cold wound and manufactured in-house at HKS to ensure quality and consistency
- Wide range of adjustment: 30-way adjustable dampening for precise tuning
- New Top Mounts: front comes with pillowball camber plates
- Type: Coilovers Suspension
- Design: Inverted Monotube
- Preset drop Front (Range): -46mm (From -0 to -58mm)
- Preset drop Rear (Range): -28mm (From -0 to -38mm)
- Front Upper Mount: Pillowball Camber
- Rear Upper Mount: Rubber
- Spring Length (Front): 250mm (Metric)
- Spring Length (Rear): 250mm (Metric)
- Spring Rate Front: 6 [kgf/mm] + 2 [kgf/mm] bumpstops
- Spring Rate Rear: 4 [kgf/mm] + 2 [kgf/mm] bumpstops
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 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.