where do we download newer mkwii?

You can download the mod from the wiki-page, Here: https://wiki.tockdom.com/wiki/Newer_Mario_Kart_Wii Or alternatively, you can join the discord guild for in-depth installation instructions.

Please excuse my delayed response. I have been ill with covid.

I have written a guide on installing the mod for the speedrun page. (https://www.speedrun.com/newer_mario_kart_wii/guide/hsxy0) Hopefully this will prevent any future confusion.