Mishimoto Racing Thermostat 2015-2025 WRX / 2014-2018 Forester XT / 2019-2025 Ascent / 2020-2025 Legacy / 2020-2025 Outback

The Mishimoto Racing Thermostat is engineered to improve cooling efficiency in your FA20DIT or FA24DIT engine. By opening at a lower temperature than the stock thermostat, it allows coolant to circulate through the engine sooner, reducing overall engine temperatures and helping prevent heat-related performance loss. Ideal for both street and track use, this thermostat is a direct replacement for the factory unit and delivers reliable, consistent performance under demanding conditions.

Features

• Direct replacement for FA20DIT / FA24DIT engines
• Opens at 165.2°F for earlier coolant flow (stock opens at 190.4°F)
• Promotes lower engine operating temperatures
• Improves cooling efficiency during spirited driving or track use
• Suitable for street or track applications

Fitment:

• Ascent 2.4L 2019
•  Crosstrek 2.0L 2024-2025
•  Forester 2.0L 2014-2018
•  Forester 2.5L 2025
•  Impreza 2.0L 2024-2025
•  Legacy 2.4L 2020-2025
•  Outback 2.4L 2020-2025
•  WRX 2.0L 2015-2025