HKS HIPERMAX IV GT Coilover Kit – 2008-2014 Subaru WRX

$2,846.57

SKU: 80230-KF002 Category: Tags: , , , Brand:

The new Max IV sporty suspension. Awesome sporty drive with great control and comfortable ride in the street. It’s perfect for daily street drive with style and performance. You and your passenger can have a comfortable ride even with a low-down.

Single Tube Damper Design

Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and centre 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 galvanising. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.

“M Shaft”

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 because of the optimized oil pressure characteristic. We mainly adopted this to the rear damper that can have a better driving experience.

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 aluminium. (Not for all vehicles)

30 Step Damping Force Adjustment

30 levels of dampening adjustment allow fine tune adjustment for street or circuit.

ApplicationSpecification
EngineEJ25
Model Year07/06 – 14/07
Remarks
FRONTREAR
Damping force adjustment30 steps30 steps
Base valve
Height adjustable lower bracket
Upper mountRubberRubber
Inverted/Normal typeInvertedNormal
Damper/Spring layoutCoiloverCoilover
Spring rate change at factoryPossiblePossible
Damping force adjustment with wire
Helper spring
(Spring rate N/mm)
○ ( 4.7 )○ ( 4.7 )

 

Ride Heightmm
Factory *2Test dataAdjustable range
High – Low *3
Drivable range
High – Low *4
FRONTRide height *1647688 ~ 599680 ~ 599
Against stock-410 ~ -89-8 ~ -89
REARRide height *1655680 ~ 590680 ~ 590
Against stock-250 ~ -900 ~ -90
*1. Height from road surface to fender arch.
*2. Height at factory is the data tested at HKS with the setting of Full Kit. (HKS’ recommended setting.)
*3. Adjustable range (However, the lowest value may not be road legal.
Even within the adjustable range, car body, arm etc. may contact. In such case, it will be hard to drive.
Damper oil leakage or any other problems caused by low ride height setting from the factory setting will void the warranty of the product.)
*4. Drivable range that there is no contact of car body or arms etc. (However, change of tire/wheel size may cause a problem.)
Caution). Actual data depends on each vehicle.

 

Kit information
Spring of Full Kit
FR
Spring rate N/mm(kgf/mm)79 ( 8 )59 ( 6 )
Free height (mm)220170
Spring typeStraight Barrel typeStraight
Recommended range to change spring rate N/mm(kgf/mm)±20 ( 2 )±20 ( 2 )
Specification of damper
FR
Damping force (Rebound/Damping)N*971 / 412392 / 147
Default position of dial1515
Remaining damper stroke (Rebound/Damping)mm45 / 6849 / 67
* The value of the damping force is at piston speed of 0.1m/sec.
Setting data
FR
DefaultTestDrivable limit
High *
Drivable limit
Low *
DefaultTestDrivable limit
High *
Drivable limit
Low *
Length of
case (mm)
279302273264284239
Spring
Set length(mm)
249242287210210236
Length to ride hight
adjuster (mm)
4878451710
Lever ratio1.11.27
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.

 

Test vehicle information
FR
Vehicle weight kg836583
Tire size (Air pressure) kPa215 / 45 – 18 ( 230 )215 / 45 – 18 ( 220 )
Wheel size7 JJ × 18 off 557 JJ ×18 off 55
Alignment
(Toe/Camber)
Test data0 mm / 1°18′0 mm / 1°30′
Standard value0 ± 3 mm / -0°10′ ± 45′0 ± 3 mm / -0°10′ ± 45′
* Test data at HKS.

 

Point
“Natural steering feeling” so that a driver can trace the line as desired was pursued, and smooth cornering as STI’s unique handling characteristic.
Focusing on driving stability during cornering to match the vehicle’s characteristics, supple damper movement can stabilize the vehicle body movement so the tires can continuously contact even on rough road surfaces.
The stock rear suspension’s stiffness was improved so driving comfort can be maintained under long-distance driving maintaining its sportiness.
Utilizing the helper springs in both front and rear dampers enables to secure the stroke of the extension side as possible.

Additional information

Weight25 kg
Dimensions114 × 59 × 41 cm

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Applications

Models suitable for this product

MakeModelYearSubmodel
MakeModelYearSubmodel
SubaruImpreza2008 - 2014WRX
SubaruWRX2008 - 2014

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