Before we dive into the files, let’s address why a sim-trucker would want this.
In the vanilla version of Euro Truck Simulator 2, trucks are electronically limited to 90 km/h (approximately 56 mph), adhering to real-world European Union regulations for heavy goods vehicles. While realistic, this limit can feel restrictive during long journeys or when playing on map mods that feature vast, open highways.
Not all speed mods are created equal. Many outdated mods simply make your truck uncontrollable. Here are the current top performers compatible with ETS2 version 1.48–1.53.
For the tech-savvy driver, understanding why a speed mod works is useful. Most speed mods edit the game_data.sii and engine/transmission files.
A dedicated "Remove Speed Limiter" mod often adjusts the truck's definition files, ensuring that once the electronic limiter is off, the engine can actually breathe and accelerate. This is the "cleanest" way to drive faster without altering the game's physics too drastically.
AI cars drive at realistic speeds (110-130 km/h on highways). When you blast past them at 300 km/h, the game's spawning algorithm cannot render traffic fast enough. You will experience pop-in cars appearing 10 meters ahead of you. Crash.
