Thanks for the response Barman and SCaseys. No previous Subaru turbos, but had an 02 tt Carrera and have a Super Duty turbo diesel. I've never had problems with a turbo. Although, I did test drive a GT that had a noisey turbo, and didn't buy it.
I just reread the Ebay buyer protection, and it looks like it would cover a non-disclosure, and not a warranty.