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Path of Exile Item Upgrading Players can upgrade their weapons and equipment by adding new accessories. They can also increase its base stats or add additional benefits. To upgrade items, the player must have the item in their inventory, and also access the kiln. Typically objects with weak bases (like rings) can be upgraded to a more powerful base, while items with strong bases such as eth titans aren't affected much in their stats after being upgraded. Upgrade components Upgrade components