GReddy high-pressure radiator caps are OEM style caps that directly replace the factory cap. GReddy Radiator Caps have a main valve pressure rating of 127kpa 1.3kg/cm2 which allows for a higher boiling point. A higher boiling point ensures protection against over heating and also ensures your car maximum coolant flow at higher temperatures. Two types are available to fit most Japanese vehicles.
Select Cap Type for Vehicle Make:
Type N - most Honda, some Toy (Scion FR-S/ Subaru BRZ)
Type S - most Nissan, Subaru, Mazda, Some Toyota, Mitsubishi