HKS Coilovers (93+ RX-7)

HKS Hipermax IV GT (93+ RX-7) 80230-AZ002

HKS HiperMAX IV GT - Although this is a product designed for comfort and stylish appearance it is able to hold its own with regards to road performance. We recommend this product to people who would use this vehicle daily and want as much comfort as possible for themselves and their passengers and those who want to reduce arch gap or lower their car.

HKS has developed the MAX IV according to thorough data analysis of many cars in the market and tested them all. They didn't only increase the rate of damping but also analyzed balance and stroke, which made this product more safe and fun to drive. HKS also redesigned the inner parts and developed new parts for MAX IV. MAX IV has new design of needle which gives more stable damping and steering characteristic at a low to mid speed range. HKS also revised dial adjustment by oil path and this new design makes even under 10 step dial, it will not be too stiff. 

Spring Length (Front): 200mm
Upper Mount (Front): Rubber
Upper Mount (Rear): Rubber
Damping Force (Front): 1353m/sec (Rebound) & 363m/sec (Compression)
Lowering (Rear): -24mm (From 0 to -86mm)
Lowering (Front): -20mm (From 0 to -67mm)
Spring Length (Rear): 200mm
Spring Rate (Front): 78N/mm (8kfm/mm)
Spring Rate (Rear): 78N/mm (8kfm/mm)
Damping Force (Rear): 1079m/sec (Rebound) & 314m/sec (Compression)


Price: $1,550.00
Sale Price $1,430.00
HKS Hipermax Max IV SP (93+ RX-7) 80250-AZ001
Single Tube Damper Design
Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride.
Dust Boot
Protect the shaft from the flying stones.
PNE Coating
Using this special surface coating provides 5 times better durability over standard galvanizing. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.
M Shaft (Φ46 normal type)
With the new design of cylinder shaft since the HIPERMAX M-1, MAX IV increased the cylinder shaft size to have a firm damping even at a little stroke range by optimizing the oil pressure characteristic. We mainly adopted this to the rear damper that can have a better driving experience.
Adopted Pillow Ball Upper Mount
For more accurate and sharp steering.
New Design Needle
Newly designed needle has been used to revise the very low speed and middle and high speed dampening which is key to a comfort ride.
Reduction of Unsprung Weight
In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminum.  (Not for all vehicles)
30 Step Damping Force Adjustment
30 levels of dampening adjustment allow fine tune adjustment for street, circuit winding roads, highway, or the weight of the vehicle.
Damping Force (Front): 3109m/sec (Rebound) & 598m/sec (Compression)
Lowering (Front): -29mm (From 0 to -67mm)
Spring Rate (Rear): 157N/mm (16kfm/mm)
Spring Length (Rear): 170mm
Spring Length (Front): 200mm
Spring Rate (Front): 157N/mm (16kfm/mm)
Damping Force (Rear): 1893m/sec (Rebound) & 392m/sec (Compression)
Lowering (Rear): -35mm (From 0 to -88mm)
Upper Mount (Front): Spherical Bearing
Upper Mount (Rear): Spherical Bearing


Price: $1,800.00
Sale Price $1,660.00
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