Following this morning’s leak, Subaru has officially introduced the STI Performance Concept at the 2015 New York Auto Show.

Following this morning’s leak, Subaru has officially introduced the STI Performance Concept at the 2015 New York Auto Show.

Envisioned as an ultimate road-going version of the BRZ, Subaru’s newest concept adopts a wider and more aggressive body which includes a large rear wing and flared wheel arches. It also benefits from beefier side skirts and extra cooling for the turbocharged 2.0-liter boxer engine derived from the track-only BRZ GT300.

Subaru hasn't disclosed any power figures but we remind you the racecar churns around 300 bhp (224 kW) and 330 lb-ft (447 Nm) of torque. Also sourced from the aforementioned BRZ GT300 are the aero upgrades, chassis and suspension components.

Don’t get your hopes up too high for a turbo BRZ as Subaru hasn’t said a thing about a production model based on this concept, but they did say it previews a significant expansion of Subaru Tecnica International (STI) in United States. Subaru says more US-spec STI-modified models will be added to the range in the future and will benefit from upgrades to the suspension, brakes, engine, aerodynamic and chassis.

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Subaru STI Performance Concept fully revealed in New York