Aluminum Racing Colling Radiator Stop Leak For 2002-2007 SUBARU IMPREZA GDA/GDB WRX STI Vers 7~9 Silver Core Size: 692 mm x 344 mm x 42 mm Improves cooling by 35 - 45% temp Stronger & Higher Capacity for Coolant Made of High Quality Full T-6061 Aluminum Construction Inlet/Outlet: 1.50" / 1.50"