The "EvoScan 3.1 repack" is a specific community-maintained or updated version of EvoScan, a popular Mitsubishi and Subaru OBDII/CAN data logging and tuning software. Key Features of EvoScan 3.1
to modify factory ROMs for increased power and driveability. Diagnostics
Step 3: Copy the evoscan3.1.exe update file into your main EvoScan installation folder.