In 3079, you are able to "upgrade" weapons, armour, anti-gravity packs and mining drills using varies modules...
Upgradeable items are only able to support one single module and the module cannot be removed if the upgrade is completed sucessfully.
(Not having sufficient engineering skill can result in an electric shock or the module breaking. The more engineering skill you have, the more likely it is that the installation of a component will be a successful.)
Items that have been upgraded have "Customized" in the title and always fetch a higher price than the item prior to being upgraded.
Note: Items (normal and customized) that give stat bonuses must be equipped for the bonuses to be applied to Player.