OPL HPR078 Aluminum Radiator For Subaru Impreza WRX, WRX STi (Manual Transmission) Fits: 2004-2007 Subaru Impreza WRX (Manual Transmission) Fits: 2004-2007 Subaru Impreza WRX STi (Manual Transmission) Inlet: 1.5" / Outlet: 1.5" / Rows: 3 Core Size: 27" x 13.5" x 2" / Overall Size: 29.25" x 18.75" x 4.25" 10 year manufacturer warranty