The Mishimoto 2008 Mitsubishi Lancer Evolution X Racing Thermostat will promote greater cooling efficiency throughout your engine. A 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 154°F (68°C) than standard thermostats 180°F (82°C), also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.Fits the 2008+ Mitsubishi Lancer Evolution XActivates at lower temperature so coolant flows through system earlierAllows for cooler engine temperaturesMishimoto Activation: 155°F (68°C) / OEM Activation: 180°F (82°C)Mishimoto Lifetime Warranty