HKS Hipermax IV GT Coilovers Spec-A | 2015+ Subaru WRX & WRX STI

Regular price $2,000.00 USD $1,717.14 USD

In Stock. Special Order

Ships in 10+ weeks

Part # hks80230-AF009V

About This Item

2015 Japan Rally Champion Toshi Arai teamed up with HKS for a special tuned set of Hipermax IV GT coilovers. The idea was to have a system built around the specifications and performance needs that a driver like Arai-san seeks in his street cars.

The HKS Hipermax IV GT coilover system was tuned and designed for street performance with race flexibility. HKS utilizes its experience from 35 years of circuit, GT, drift, and drag racing to bring you the cutting edge in suspension technology. Paired with rally genius Toshi Arai and you have the perfect set of coilovers for optimal performance on the street and in the track.

  • Subaru WRX [VAG] (2015, 2016, 2017, 2018, 2019, 2020, 2021)
  • Subaru WRX STI [VAB] (2015, 2016, 2017, 2018, 2019, 2020, 2021)


Hiper Linear Piston adjusts oil passages for precise stroke management resulting in smooth valve movements
2 Way Adjustable Front and Rear Pillowball Mount
Monotube inverted piston design (where possible)
Full shock-body length adjustable
65mm diameter springs – Cold wound and manufactured in-house at HKS to ensure quality and consistency
Stainless lock nut & ride height adjuster – feature anti-rust & corrosion characteristics for enhanced durability
30-way adjustable dampening
Hard chrome-plated cylinder shaft
Non-electrolysis Nickel plated shock bodies provide durability in severe weather conditions
Tuned for street and track performance by Toshi Arai

Extended Information

Damping Force (Front): 1000m/sec (Rebound) & 490m/sec (Compression)
Damping Force (Rear): 370m/sec (Rebound) & 350m/sec (Compression)
Front Upper Mount: Steel Pillowball + Camber
Lowering (Front): -19mm (From 0 to -30mm)
Lowering (Rear): -20mm (From -0 to -31mm)
Rear Upper Mount: Aluminum Pillowball
Spring Length (Front): 250mm (Barrel)
Spring Length (Rear): 220mm
Spring Rate (Front): 49+19 N/mm (5+2 kgf/mm)
Spring Rate (Rear): 39+19 N/mm (4+2 kgf/mm)

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Return & Cancelation Policy

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.