STi is Fuji Heavy Industries' motorsports division. STI, along with Prodrive of the UK specialized in a variety of vehicles for the Subaru World Rally Team which competed in the World Rally Championship (WRC). Founded in 1988 by Fuji Heavy Industries, the parent company of Subaru, to promote the company's performance-oriented identity.
STI's signature color is "Cherry Blossom Red" (or "Rubine Red" as it is known in Australia.) It is seen as a masculine colour in Japanese culture.