Mishimoto Racing Thermostat 2002-2014 WRX/2004-2017 STI

The Mishimoto racing water thermostat promotes greater cooling efficiency throughout your engine. The Mishimoto racing thermostat will significantly lower high engine temperature produced by modified and upgraded turbo applications. The thermostat opens at a temperature 18 degrees F lower than the stock item, also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures by a corresponding amount. (Coolant temps will end up roughly 18 degrees lower than with a stock thermostat.)

Fits all 2002-20014 WRX and 2004-2017 STI.