The STI Performance Concept signifies a plan for U.S.-expansion of Subaru Tecnica International (STI), the performance division of Subaru, in its three core business areas; aftermarket parts, STI-tuned cars and motorsports.
The expansion has already begun, with STI-engineered parts replacing Subaru Performance Tuning (SPT) aftermarket parts in the U.S. market, and with STI's increasing engineering presence in Subaru of America's Global RallyCross team.
In the future, further models tuned by STI will be available in the US. These cars could feature more extensive modifications from the factory than previously offered, such as suspension, performance, braking, chassis and aerodynamic upgrades.
Source: Subaru Press Release