An excellent MOD that has become too outdated, although it is basically working. The sound of the 660turbo engine (or 900, I don't remember now...) is broken. The headlights get weird lights too. I really hope it will be updated by the author when possible.
Have you considered adding an optional rear sway bar? I've tried to make a touge tuned Chisai but I can't get it to stop rolling over.
Hard to say if Nekkit will update this mod at all, the Chisai is a really old mod and in Nekkits signature in the pic I'm providing they have all the mods they are currently supporting and the Chisai isn't one of them.