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- Open MAS2.exe → \Steam\steamapps\common\rFactor 2\Support\Tools
- Double click on the MAS2.exe
Step 4:
- Open the 'car-upgrade.mas' for the car you want to update (example Bentley)
- Navigate to \Steam\steamapps\common\rFactor 2\Installed\Vehicles\Bentley_Continental_GT3_2017
- Click and drag the file 'car-upgrade.mas' into the main window of the MAS tool
- Select and highlight one of the VEH files and right click
- Select 'extract' and save to 'Bentley League Updates' folder.
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