Mishimoto Racing Thermostat for 2015+ Subaru WRX Lower Temp Cooling Efficiency

Mishimoto Racing Thermostat for 2015+ Subaru WRX (Lower Temp Cooling Efficiency) Upgrade your FA20DIT cooling with the Mishimoto Racing Thermostat engineered for 2015 and newer Subaru WRX models. Designed for both stock and modified setups, this direct-replacement thermostat improves thermal management for street and track use. Key Benefits Lower opening temperature: Opens sooner than OEM units to circulate coolant earlier and reduce peak engine temperatures. Improved cooling efficiency: Helps maintain more consistent operating temps during spirited driving and track sessions. Direct bolt-in fit: Precision fitment for 2015+ WRX—easy installation with no modification required. Reliable construction: Built to Mishimoto quality standards for long-term durability under demanding conditions. Mishimoto Lifetime Warranty: Backed by the brand’s industry-leading warranty for peace of mind. Why Choose This Thermostat? Whether you’re daily driving, autocrossing, or hitting the track, controlling coolant flow sooner reduces thermal stress on the FA20DIT. The Mishimoto Racing Thermostat is an affordable, effective upgrade to help prevent overheating and sustain performance under load.