Mishimoto Racing Thermostat; 155-Degree (15-21 WRX STI)Find parts that fit my vehicle

Enhanced Cooling Performance. The Mishimoto Racing Thermostat; 155-Degree is designed to improve cooling efficiency by opening at a lower temperature than standard thermostats. It allows coolant to flow through the engine sooner, helping to maintain lower engine operating temperatures, which is especially beneficial for vehicles with modified or upgraded turbo systems to prevent overheating.

Construction and Appearance. This thermostat is made from high-quality materials engineered for durability and reliable thermal performance. It features precision manufacturing to ensure consistent activation temperatures and a robust finish designed to withstand harsh engine bay conditions.

Installation. Installation difficulty is medium and does not require drilling, making it accessible for experienced enthusiasts and professional installers. It is a direct replacement part designed to fit seamlessly into the existing cooling system.

Warranty. Includes a lifetime limited warranty covering defects in materials and workmanship.

Application. Specifically fits 2001 to 2021 Subaru WRX and STI models, ensuring compatibility and optimized cooling for this generation.

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