High pressure radiator cap increases pressure rating of cooling system from .9 bar (13.0 lbs) to 1.3 bar (18.9 lbs). Allows for more efficient cooling under demanding conditions.
Other Items from Engine Dress Up STi Air Duct Hose - STi Radiator Hose Set - SPT Radiator Shroud - SPT Turbo Heat Shield - SPT Battery Tie Down avialable in Gray and Blue - SPT Oil Cap available in Gray and Blue - STi Radiator Cap -