These two inhabit what was previously a coati exhibit. (And before that a tamandua exhibit (And before that an acouchi exhibit (And before that a Geoffrey's cat exhibit))).
Update: This exhibit is now home to three male common squirrel monkeys (Saimiri sciureus). Additionally there was a recent study suggesting the two red panda subspecies are actually distinct species. In that case Gizmo and Amaya would be Himalayan red pandas (Alilurus fulgens).