Asphalt 9 Legends Switch Nsp -dlc Update- -eshop- Direct

Assuming you have a Switch with Custom Firmware (Atmosphère) and Hekate:

The game has received several DLC packs, which add new cars, tracks, and features to the game. These updates are available through the Nintendo eShop, and you can easily download them from there. Asphalt 9 Legends Switch NSP -DLC Update- -eShop-