Mishimoto 12-13 Subaru BRZ / 12-14 Scion FR-S Racing ThermostatThe Mishimoto racing thermostat for the 2012+ Subaru BRZ Scion FR S will promote greater cooling efficiency in your stock or modified FA20. Once the engine is fully warmed up, the Mishimoto racing thermostat will open at a lower temperature than standard thermostats. This allows coolant to flow through the engine sooner, which reduces and maintains cooler engine temperatures. The Mishimoto BRZ FR S racing thermostat is the perfect addition to your