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Mishimoto Subaru WRX And STI Racing Thermostat, 2001- 2007
The Mishimoto racing thermostat for the 2001+ Subaru WRX And STi will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantlylower high engine temperature produced by modified and upgraded turbo application. Once the engine is fully warmed up the Mishimoto racing thermostat will open up at a lower temperature than standard thermostats, also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.