Path of Exile item upgrade Upgrading
The ability to upgrade items allows players to upgrade Item their weapons and equipment with new affixes, boosting the base stats of the Best item upgrader or giving additional benefits. To upgrade an item level upgrade, a player has to have it in their inventory, Upgrade item as well as access to the kiln.
Items with weak bases, like rings can be upgraded to a stronger base. Items with strong bases, like Titans from eth, have no changes in their stats.
Upgrade components
Upgrade components can be added to weapons, armors trinkets, weapons and gathering tools. They give you an attribute benefit, or extra effect, while the equipment is in use. They can be purchased from vendors, or found in loot, thrown away by enemies or as rewards from missions or chests. Certain upgrades also have cosmetic effects. Most upgrades require that the equipment be above a certain item level upgrade before they are upgraded.