Category: Automotive Parts and Accessories Subaru WRX 2001-2014 / STI 2001-2016 The Subaru WRX is a popular all-wheel drive sports car that has been in production since the early 2000s. The STI version of the WRX is even more powerful and performance-oriented, with a turbocharged engine and other upgrades to make it stand out from its standard counterpart. When it comes to maintenance and repairs on these vehicles, there are many different parts that can be replaced or updated to keep them running smoothly. One such part is the thermostat, which controls the flow of coolant through the radiator and helps regulate the engine's temperature. There are several different types of thermostats available for Subaru WRX and STI models, including 68 degree racing thermostats and OE equivalent thermostats with a higher opening temperature of 172 degrees Fahrenheit. Some kits also include additional parts such as engine coolant thermostat seals to make the installation process easier. When choosing a thermostat for your Subaru WRX or STI, it's important to consider factors such as the climate in which you live and the intended use of the vehicle. For example, if you plan on driving your car heavily or in extreme temperatures, you may want to choose a higher-performing thermostat with a lower opening temperature. Overall, replacing the thermostat on a Subaru WRX or STI can be a relatively simple and cost-effective way to improve the performance and longevity of your vehicle.