This MCB could be the closest you can get to the SDM improve ride for around USD$1,000, except they claim it also assists with on-road/high speed handling:
www.4x4es.co.jp
It's made by Aisin, which is a Toyota-owned OEM supplier. I found some decent reviews of the tech in the GR86 community, but not sure about LCs.

ãã©ã¼ãã¤ãã©ã¼ã¨ã³ã¸ãã¢ãªã³ã°ãµã¼ãã¹ : 4x4 Engineering Service
The company develops wheels and other products specifically for 4x4 (four-wheel drive vehicles), and continues to meet the expectations of its many fans, including the BRADLEY wheels, which are exclusively for 4WD vehicles.

It's made by Aisin, which is a Toyota-owned OEM supplier. I found some decent reviews of the tech in the GR86 community, but not sure about LCs.