The current Imperial Age unique Tech ‘Silk Road’ currently decreases the cost of trade units by -50%.
(Kind of useless by imperial age)
I suggest changing that to be a base-line bonus as the 5th civ bonus for the Italians.
As for the Imperial age unique tech It should be switched out for something that will strengthen the civilization as a whole - feel free to make suggestions below.
+1/1 armor on their ships in general
+1-3 or so range on their Galleons
Added sept 15th:
Silk Road: Trade units cost reduced by 50% and enemy docks’ and markets’ line of sight becomes visible.