The Subaru Impreza WRX STi (also referred to as simply, STi) is a high-performance version of the Subaru Impreza WRX, tuned by Subaru Tecnica International. Originally sold only in Japan and Europe, Subaru began selling the STi in North America in 2004. Available in the Japanese domestic market with a 2.0 L engine, the North American STi features a 2.5 L powerplant. The STi weighs in at nearly 3300 lb.
All US, Japanese, and European models claim 300 hp at 6000 rpm and 300 ft·lbf of torque at 4000 rpm, although the US and Japanese models claim 0–60 mph times of 4.6 s whereas the European models claim 5.1 s.
