Dear Mr. Katsimbris:
Thank you for visiting the Subaru web site and for your message!
The Subaru STI models do not come with window tint from the factory. We do not install a 39% window tint on this model. Only the Subaru B9 Tribeca comes with tinted windows from the factory, and only the rear windows are tinted, not the front side windows.
The STI model, like all other Subaru's. has a very light, UV reduction tint. It may have a faint blue-ish hue to it, but is not usually noticeable. If the vehicle you purchased has a 39% tint on it, it was installed at some point after the production, either by dealer or previous owner.
If you have any other questions, do not hesitate to reply to this email!
(Name Withheld, although I wish they allowed me to post the name because this person had excellent etiquette)
Subaru of America, Inc.
Customer/Dealer Services Department
I then replied because I just had some further inquiries in his email, but nevertheless, Subaru is in the clear, and with the help of my dealer, so will be my car's windows.
Rock on Subaru.