The 2012 Subaru Impreza WRX and WRX STI remain primarily unchanged for the 2012 model year. While the base Impreza is completely new this year, these high-performance variants carry over on the previous-generation platform. The WRX and WRX STI ... The 2012 Subaru Impreza WRX and WRX STI remain primarily unchanged for the 2012 model year. While the base Impreza is completely new this year, these high-performance variants carry over on the previous-generation platform. The WRX and WRX STI are still available as either 4-door or 5-door and feature a 2.5-liter turbocharged Boxer engine putting out 265 horsepower on the WRX, 305 horsepower on the STI. For 2012, the WRX and STI get minor interior and exterior trim changes as well an updated touch-screen navigation system available on the Premium and Limited models. The WRX STI 4-door also gets new-design 18-inch alloy wheels. Oregon Dealer # 2745