Hacking [Question] How do i import custom tracks to Mario Kart 8?

[Fevirre]

i found out you can import obj files into mario kart 8 via SDCafiine but i need help

Im trying to get maple treeway to overwrite the wild woods course but when i open it in wexos toolbox i get an empty screen or just two cubes stacked onto eachother

i did open the obj file in blender and export it as a .DAE file

there is a tutorial but the user used an outdated version of blender which is im using the latest and its very confusing, VERY confusing

in 3dsmax it imports the course as well but when i export it its just two cubes on my screen