HKS HIPERMAX S GRB/GVB (STI Only) Front Pillow Ball Full Kit

$2,745.00 CAD

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Description

Another type of HIPERMAX S that employs the pillow ball spherical bearing at the front upper mount has been newly added.

The front upper mount employs the pillow ball spherical bearing. It makes it possible to change the camber angle compared to the existing rubber bearing type of the HIPERMAX S. A direct handling feeling of the car from the pillow ball top mount brings more joy to driving.
Accomplish the suspension to provide a sense of stability based on the flexible setting to optimize the speed of the car roll for improving the roll rigidity.
It enables to drive while bringing out the gripping force of the tire maximally thanks to the calm behavior of the vehicle in sports driving.
3-year warranty is included for the highly durable product with the reconsidered internal parts.

The model in the photo is GRB.

Application

Engine	EJ20(TURBO)
Model Year	07/10 - 14/08
Remarks

Specification

	FRONT	REAR
Damping force adjustment	30 steps	30 steps
Base valve	-	-
Height adjustable lower bracket	〇	〇
Upper mount	Spherical bearing	Rubber
Inverted/Normal type	Inverted	Normal
Damper/Spring layout	Coilover	Coilover
Spring rate change at factory	Possible	Possible
Damping force adjustment with wire	-	-
Helper spring (Spring rate N/mm)	〇 (4.7)	〇 (4.7)

Ride Heightmm

		Factory *2	Test data	Adjustable range High - Low *3	Drivable range High - Low *4
FRONT	Ride height *1	654	←	680 ～ 629	680 ～ 629
FRONT	Against stock	-31	←	-5 ～ -56	-5 ～ -56
REAR	Ride height *1	650	←	679 ～　614	679 ～　614
REAR	Against stock	-34	←	-5 ～ -70	-5 ～ -70

*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

	F	R
Spring rate N/mm(kgf/mm)	88 ( 9.0 )	69 ( 7.0 )
Free height (mm)	220	170
Spring type	Straight Barrel type	Straight
Recommended range to change spring rate N/mm(kgf/mm)	±10 ( 1 )	±10 ( 1 )

Specification of damper

	F	R
Damping force (Rebound/Damping)N*	667 / 549	353 / 382
Default position of dial	15	15
Remaining damper stroke (Rebound/Damping)mm	49 / 64	60 / 59

* The value of the damping force is at piston speed of 0.1m/sec.

Setting data

	F				R
	Default	Test	Drivable limit High *	Drivable limit Low *	Default	Test	Drivable limit High *	Drivable limit Low *
Length of case (mm)	254	←	278	246	262	←	283	236
Spring Set length(mm)	247	←	247	262	220	←	220	220
Length to ride hight adjuster (mm)	23	←	47	0	39	←	60	13
Lever ratio	1.10				1.38

* Refer to the above explanation *3 of ride height information for drivable high and low limitations.

Test vehicle information

		F	R
Vehicle weight kg		893　(890)	627　(590)
Tire size (Air pressure) kPa		255 / 35 - 18 ( 230 )	255 / 35 - 18 ( 190 )
Wheel size		8.5 JJ × 18 inset 55	8.5 JJ × 18 inset 55
Alignment (Toe/Camber)	Test data	in 0 mm / -1°50'	in 0 mm / -2°10'
Alignment (Toe/Camber)	Standard value	in 0 ± 3 mm / -0°40' ± 0°45'	in 0 ± 3 mm / -1°35' ± 0°45'

* Test data at HKS.

Parts List * It may be changed without prior notice.

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Application List

Image	SKU / Part No	Application	Detail
	80300-AF001P	Subaru Impreza (2008-2014) - WRX STI/WRX STI Limited/WRX STI Special Edition
	80300-AF001P	Subaru Impreza WRX (2008-2012) - STI
	80300-AF001P	Subaru WRX STI (2013-2014)