i'm using HWL ST1 for my car....pls avoid....u adjust smpai penin also cannot go....keras mcm nk patah pinggang......for drift maybe good....before this i'm using BC v1.....this 1 very good....comfort, corner....

The stud for the ball joint is actually slightly longer. Installing this thing actually has the biggest impact on my car handling. More than installing the cls spring and thicker 19mm rear anti rollbar.
But i suggest to terus weld it after install, because mine at the drivers side for some reason gotten loose after a few weeks of using it.


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I see. What spring rate are u using? On what car?

on axia
i think same as this - spring rate front is 6k / back is 4k

way too high for axia.
axia is light car.

Axia is around 200kg - 400kg lighter than cars that normally use 6k/4k spring. To get the same rate, you need to use 4k/2.5k spring. But I am not sure whether 2.5k spring is available for sale normally.

Does HWL adjust the rebound only and maintain the compression rate? If yes, try to increase the rebound stiffness to reduce the bouncing.

This post has been edited by imadude85: Oct 30 2022, 02:52 PM

Update: I finally installed HWL ST1 at my Gen-2. 6k front, 4k rear, 2 clicks front and rear. And for me it actually felt slightly more comfortable than my previous sport spring. But as a side note, sport sping for gen-2 are used throughout multiple models (neo, waja).

@djandrew - I asked HWL and the difference between ST1 and MT1 is the extra clicks for MT1 allows for more stiffer setup. The initial soft setup between both are the same. The internal components are also same.