Found this on MT's site.
2004 Subaru Impreza WRX STi: The Impreza WRX has been a smashing success, bringing first-time Subaru shoppers into the showroom and establishing a true performance image in America. A watered-down version of the home-market WRX, the 227-horse model will be joined by its WRX STi big brother. The Subaru Technica International model promises 260 horsepower, firmer suspension, front and rear limited-slip differentials, six-speed manual transmission, and larger Brembo brakes.