The second generation STI took the turbocharged flat-four and all-wheel drive orientation of the first and upgraded it to a 6-speed transmission (previous 5-speed) and stiffer chassis. Beginning with the 2004 model, the sedan made its Stateside debut with 300 hp and 300 lb-ft of torque, paving the way for Ken Block's first Gymkhana video. Abandoned parking lots and Segway riders have never been the same.