You don’t need to risk a ban to enjoy all 96 tracks. Here are legitimate options:
The official patches released by Nintendo (e.g., v2.0.0, v3.0.1, or later). These contain bug fixes, balancing adjustments, and data for the Booster Course Pass. switch nsp mario kart 8 deluxe upd
Technically, an NSP is essentially a PFS0 (Partition File System) container. Inside this container lies a collection of NCAs (Nintendo Content Archives). These NCAs are encrypted containers that hold the game executable, assets, and metadata. You don’t need to risk a ban to enjoy all 96 tracks
: Running unofficial NSP files while connected to Nintendo servers will result in a permanent console ban. or later). These contain bug fixes