Cooling System

This is the same Coolant Overflow Tank + Washer Reservoir filler combo that is included with our 2004-2007 WRX and STI Front Mount Intercooler Kits. As a stand-alone item it helps to clean up the engine bay and tuck the over flow tank lower and out of...

Replace your old, dried out factory radiator hoses with the COBB Tuning Silicone Radiator Hoses. Constructed of 3-ply reinforced silicone, these hoses will not only look better but also last longer. Silicone hoses have a higher operating temperature...

Keep your engine cool by upgrading to the COBB 1.3 Bar Radiator Cap This higher pressure cap increases the effective boiling temperature of coolant in the system. The higher temperature allows the cooling system to absorb more heat. The cap increases...

This radiator shroud is made from 5052-H32 Aluminum, powder coated black and features a laser etched COBB logo. Subaru Radiator Shroud 2015-2021 WRX, 2015-2021 STI Aluminum Construction Powder Coated Black Laser Etched COBB Logo

This is the same Overflow Tank that is included with our 2008-2014 STI Front Mount Intercooler Kits. As a stand-alone item it helps to clean up the engine bay and tuck the over flow tank lower and out of sight. Constructed of aluminum and powder coated...