Instead of looking for a specific "400 km/h mod," search the Steam Workshop for or "No Speed Limit Engine" mods updated for the current patch.
Because ETS2 data is easily accessible, you can create your own unpatchable speed mod by editing the game configuration files. euro truck simulator 2 speed mod 400 km h patched
Every major ETS2 update (1.49, 1.50, 1.53, etc.) changes how torque, drag, and collision physics work. A mod that worked on version 1.48 will often cause the truck to: Instead of looking for a specific "400 km/h