Explanation of the product Application chart

IS250 GSE30
MAX IV GT Code No. 80230-AT011

▲The above photo is an item for AVE30.

Awesome control and comfort ride on the street for a sporty drive. The new Max IV sporty suspension.

Application   Specification
Engine 4GR-FSE
Model Year 13/05 - 16/09
Remarks Developed with F SPORT.
Vehicle height data of IS300h
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket
Upper mount Rubber Rubber
Inverted/Normal type Normal Normal
Damper/Spring layout Coilover Separated
Spring rate change at factory Possible Possible
Damping force adjustment with wire -
Helper spring
(Spring rate N/mm)
○ ( 4.7 ) -

Ride Height mm
  Factory *2 Test data Adjustable range
High - Low *3
Drivable range
High - Low *4
FRONT Ride height *1 649 675 ~ 603 675 ~ 635
Against stock -26 0 ~ -72 0 ~ -40
REAR Ride height *1 638 663 ~ 602 663 ~ 602
Against stock -25 0 ~ -61 0 ~ -61
*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) 78 ( 8 ) 88 ( 9 )
Free height (mm) 250 250
Spring type Straight Straight
Recommended range to change spring rate N/mm(kgf/mm) ±10 (-1~+1) +10 (0~+1)
Specification of damper
  F R
Damping force (Rebound/Damping)N* 1200 / 350 750 / 250
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 65 / 40 65 / 70
* 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)
422 440 422 459 487 446
Set length(mm)
289 289 299 - - - -
Length to ride hight
adjuster (mm)
34 52 24 R:51 / L:54 R:64 / L:67 R:29 / L:32
Lever ratio 1.40 2.00 (spg) , 1.29 (dmp)
* Refer to the above explanation *3 of ride height information for drivable high and low limitations.

Test vehicle information
  F R
Vehicle weight kg - -
Tire size (Air pressure) kPa 225 / 35 - 19 ( 240 ) 255 / 30 - 19 ( 240 )
Wheel size 8.5 JJ × 19 inset 45 9.5 JJ × 19 inset 45
Test data 0 mm / -1°12' +1.8 mm / -2°18'
Standard value - -
* Test data at HKS.

Parts List * It may be changed without prior notice.

We have set it for the mainly street use with the F SPORT type. First, we set the vehicle height low for cool look. You can adjust the damper setting because it’s a height adjustable lower bracket type. We try to keep the stock’s stroke and drive feel. But there is some rolling, and N mode and S/S+ mode has some wrongness. We adjusted for these problems and have even smoother driving experience. Also we adjusted and set the weight allotment for springs and dampers for best steering and less rolling. But still have the great feeling for human sense. We have set enough stroke as the stock to reduce the uncomfortable reaction from road surface. We also checked with electronic device for stability and comfortable drivability. Please set the dial at 15 for beginning and drive for a while. Then if you prefer more comfortable ride, set it at around D20 or set it D00 for sportier ride.
* We have checked with TRD stabilizer, so you can also use it to reduce the rolling.
* When lowering down by using special wheels, we recommend not changing factory set case length because it will interfere with front upper arm and also inner front and back stay and tire. We also advise not to use bigger front tire.