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Mishimoto 68°C (154.4°F) Racing Thermostat for 2006+ Honda Civic Si

Elevate the performance and reliability of your 2006 and later Honda Civic Si with the Mishimoto 68°C Racing Thermostat. Engineered for enthusiasts who push their vehicles to the limit, this thermostat ensures your engine operates at its ideal temperature, preventing overheating and maximizing power output.

Unlock Peak Performance with Mishimoto:

• Lower Activation Temperature: Opens at a significantly lower temperature (68°C / 154.4°F) compared to the stock unit, allowing coolant to circulate sooner.
• Improved Heat Dissipation: Facilitates quicker heat exchange through the radiator, keeping engine temperatures consistently lower.
• Enhanced Engine Longevity: Reduces thermal stress on engine components, contributing to a longer lifespan and preventing potential damage.
• Direct Fit Design: Precision-engineered to fit seamlessly into your 2006+ Honda Civic Si's cooling system.
• High-Quality Materials: Constructed from durable materials to withstand high engine bay temperatures and ensure lasting performance.

The Mishimoto Racing Thermostat is a crucial upgrade for any performance-oriented Honda Civic Si owner. Whether you're participating in track days, autocross events, or simply demand more from your daily driver, maintaining optimal engine temperature is paramount. This thermostat helps achieve that by promoting more efficient cooling, especially when paired with other Mishimoto cooling upgrades like performance radiators and silicone hoses.

This thermostat is specifically designed for the performance needs of the Honda Civic Si and is compatible with various related models.

Fits: 2006-2011 Honda Civic Si (8th Gen), 2012-2015 Honda Civic Si (9th Gen) and other compatible Honda/Acura models.

Experience superior engine cooling. Shop the Mishimoto range at GGCRACING.