The Subaru WRX STI has been upgraded more than a few times since it arrived years ago but if you were to look at the performance progress of the Subaru WRX STi, you will notice how slow its progress has been.
Subaru fans have been begging Subaru to give the Subaru WRX STi a proper engine upgrade and although the WRX S4 Sport concept car suggest that Subaru might be thinking about it, we do not know if it will really happen when the production model arrives.
After looking at the 2.0-liter direct injection turbocharged engine under the hood, fans are not hoping that the engine will be carried over to the production model. The new engine will allow their customers to get the WRX STi that they have been asking for all this time.
Do you think Subaru will give it the thumbs up? Subaru also showed off the Subaru BRZ STi Sport, and Levorg STI Sport at the Tokyo Auto Sedan as well.