the sti has red gauges, the wrx green. the sti will have 17" wheels, and brembos brakes on all four corners. the hood scopp will be a half inch taller than on an 04 wrx. it will have recaro seats on the inside, as well as sti floor mats. in the center console, there will be a rolling switch for the dccd. the radio, and hvac controls are different as well, but that would take a while to list.