1. Search for the save folder : 53450845
2. Open the save file with the save editor.
3. edit your desired Valor points
Put back to your xbox and profit.
The app does the Rehash/resign.
Thor Save editor V4.0.rar
Edit: works for all saves now, Thanks to PureIso
Edit 2: fixed error when inserting too manny digits.
edit 3: Added Rehash/resign