HKS Hipermax IV GT Coilovers - Infiniti G25, G35, G37

Regular price $2,200.00 USD $1,886.23 USD

In Stock. Special Order

Ships in 10+ weeks

Part # hks80230-AN004

About This Item

Adjusting your vehicles suspension is one of the easiest ways to instantly improve overall performance. HKS offers a complete line of coilover suspension systems for every need. The HKS Hipermax IV line is their top tier setup, tuned and designed for street performance and race applications. HKS utilizes its experience from 35 years of circuit, GT, drift, and drag racing to bring you the cutting edge in suspension technology.

  • Infiniti G35 [PV36 Sedan] (2007, 2008)
  • Infiniti G37 [V36 Coupe / Sedan] (2008, 2009, 2010, 2011, 2012, 2013)
  • Infiniti G25 [V36 Sedan] (2011, 2012)
  • Infiniti Q60 [V36] (2014, 2015)
  • Infiniti Q40 [V36] (2015)


Monotube Design for constant and stable suspension response
30-step Dampening Adjustable
PNE coilover coating (better than anodizing) for corrosion protection
Newly designed needle that adjusts dampening from low and middle/high speeds for provide a comfortable ride
Dust boots included for debris protection
Aluminum used where possible to reduce un-sprung weight
Special HKS formulated piston oil used
Inverted front piston for better handling and steering response

Extended Information

Damping Force (Front): 1250m/sec (Rebound) & 350m/sec (Compression)
Damping Force (Rear): 550m/sec (Rebound) & 250m/sec (Compression)
Front Upper Mount: Rubber
Lowering (Front): -35mm (From 0 to -103mm)
Lowering (Rear): -43mm (From -28 to -82mm)
Rear Upper Mount: Rubber
Spring Length (Front): 200mm
Spring Length (Rear): Special
Spring Rate (Front): 98N/mm (10kgf/mm)
Spring Rate (Rear): 88N/mm (9kgf/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.