AVOTurboworld manufactures many performance products for many different vehicles and have a huge amount through out the Subaru range. We also look to manufacture OEM replacement products that have a high failure rate from factory or where the manufacturer no longer makes the part available for to the general public.
The 2.0L GDB & GDA Radiator Header Tank is one of these products. The Header Tank is constructed of Aluminium and is finished off with Black Anodising to stop it from deoxidising over time. Due to most EJ20 turbo engines being upgraded and more boost being utilised there is much more heat, so a 18 psi radiator cap raises the boiling point and protects the cooling system from boiling over at the top of the operating temperature range.