Path of Exile Item Upgrading
The ability to upgrade items allows players to enhance their weapons and gear with new affixes, increasing its stats base or giving additional benefits. To upgrade item (http://lzdsxxb.com/home.php?mod=space&uid=3372529) items, players must have the item level upgrade in their inventory and access the kiln.
Usually items that have weak bases (like rings) can be upgraded to a more powerful base, upgrade item while items with strong bases such as eth titans aren't affected in their stats following being upgraded.
Upgrade components
Upgrade components can be added to weapons, armors, trinkets, and gathering tools. They can be used as an attribute bonus or an additional benefit, upgrade Item while the equipment is being used. They can be bought from vendors, or found in loot, thrown away by enemies or received as a reward from missions or chests. Certain upgrades also have cosmetic effects. Most upgrades require that the equipment be at a specific level to upgrade.