Mishimoto 12-13 Subaru BRZ / 12-14 Scion FR-S Racing ThermostatThe Mishimoto racing thermostat for the 2013+ Subaru BRZ 2021+ Toyota GR86 17 20 Toyota GT86 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 GR86 GT86 FR S racing thermostat