The Mishimoto racing thermostat for the '01-'07 Subaru WRX and STI will promote greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and upgraded turbo applications. 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.
Perfect upgrade for the hot weather here in PR. Running cooler than ever!
Cars been cooler than ever when I take it to the track!