Unfortunately, we don't have any further details on the new variant right now, so we'll have to wait a few more weeks to see what the STI folks have been up to. We hope the S209 will offer even more performance than the limited-edition Type RA. In the past, S20(X) series models packed more power, upgraded suspension and improved aero compared to the standard WRX STI.
In the U.S., the current car's EJ25 turbo flat-four engine has been making roughly the same amount of power for a long time now, but in Japan, the S208 from last year made do with a newer 2.0-liter turbocharged four-cylinder making more power than our 2.5-liter. It's hard to believe that Subaru will try and certify a new engine for U.S. use, so a further refined STI engine is probably coming our way.
We'll find out what Subaru has in store for us on January 14 in Detroit. Until then, feel free to speculate to your heart's content.