The radiator with fans and fan shroud. Subaru Impreza WRX STI 2.0L H4 1994cc -ci 2003-2005. Subaru Baja 2.5L H4 2458cc -ci 2004-2006. Subaru Impreza WRX STI 2.5L H4 2458cc -ci 2004-2007. This radiator is heavy duty designed, Cooling capacity is increased about 30% than standard radiator, exceeds OEM.