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The Mishimoto 68°C racing thermostat for 2001+ Subaru WRX and STI models promotes greater cooling efficiency by opening at a lower temperature than standard thermostats. It allows coolant to flow sooner once the engine is warm, reducing and stabilizing higher temperatures produced by modified or upgraded turbo applications, helping maintain cooler engine operation under sustained load.
Mishimoto 01-07 Subaru WRX / WRX STi 68 Degree Celsius Racing Thermostat
