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Warframe Item Upgrader Interacting with NPCs who upgrade items allows a player to upgrade their equipment. Each upgrade increases one stat, while certain upgrades can unlock additional stats. The stats get better as you progress through the levels and reach their maximum at level 6. In some instances, an upgraded item may gain a bonus that increases its value in comparison to the non-upgraded version. Recycled items Many of the items that we use every day are recycled, like glass, paper, aluminum and plastics. S