Mishimoto has developed a racing thermostat specifically designed for the LT1- powered GM cars. Mishimoto racing thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature racing thermostat will open at a lower temperature (160°F) compared to standard thermostats (180°F). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Whether you take your car to the strip or to a show, a reliable cooling system is a must. As with all their products, this thermostat includes the Mishimoto Lifetime Warranty.