Was it made at the plant in North Carolina? Or in Seattle?
"Provision for the new exits – which boost the exit limit capacity from 189 to 215 passengers – “will be structurally installed as standard in all -900s, and will allow operators to decide if the door should be activated or deactivated”, says 737 chief project engineer Mike Delaney."
Makes it sound like they're always installed, and airlines can opt to activate them or not...
[1] Simulated full pressurization, often many of them
[2] And yeah. Spirit's got problems. But those problems wouldn't be problems if Boeing didn't sell off BCA's Wichita fuse fab to investment bankers back in 2005 as "Spirit". It's a pretty good name, since it's what some religions think is left behind after you're dead.