Came across this today. Not sure if it has Ben discussed before. I just thought it might be useful for someone.

https://motoiq.com/xe20-lexus-is-f-is-adjustable-front-sway-bar-hack/

 

This particular article seems to go more into detail and it's good to know the height sensor bracket has to be modified (welded). That might deter some people.
But here is a link to another thread where this was discussed:
https://www.clublexus.com/forums/is-...y-bar-mod.html