Radium Engineering Radiator Cap Type-A 1.1 Bar - Black | 18-0076-A11 Speed3_2007-2009 while an it retains a

while an it retains a performance exhaust sound at high speed

Hole plugs included (4qty)

Part #: BRZ1FRDFD3G

Direct bolt-on design using factory mounting points

Radium Engineering Radiator Cap Type-A 1.1 Bar - Black | 18-0076-A11 Speed3_2007-2009 while an it retains aType A cap style common applications: 2015 2021 Subaru STI 2015 2021 Subaru WRX The radiator cap is an essential part of an upgraded cooling system. Radium caps are engineered to safely improve cooling efficiency by managing the boiling temperature. A higher radiator pressure effectively raises the coolant boiling point, providing an extra safety margin and preventing air pocket cavitation at the water pump. Specs: 1. 1 BAR 16. 0 psi Steel cap with