Not a bad looking car.
It does look like an aftermarket CBE obviously. Interior is stock. The turbo heatshield is still intact which means it may not have been modified aside from the CBE (common mod is to replace the downpipe, which requires removing that heatshield). The wheels are painted black, which is not stock.
There's really no concern of two owners or how much it was driven in a given period of time, as long as all maintenance has been kept up with. The carfax does show a couple maintenance items like oil changes though there is a small period where one may have been missed or something, though a Carfax won't list all changes if the owner did them himself or he went to another smaller ma and pa shop that may not report to carfax for something like that. Overall, that is a pretty low mileage car for a 2011.
Give it a test drive, and have an independent Subaru mechanic look at it. $100 to check it out professionally could save you some headaches down the line if you do go for it.