The engine thermostat
The thermostat regulates the coolant temperature. The thermostat opens depending on the model from 60 to 90 degrees, when it released the radiator cooler water in the engine cooling circuit. When the temperature has dropped sufficiently, usually 5 to 10 degrees, the thermostat closes again.
Mishimoto makes cooling products like radiators, intercoolers, oil coolers, silicone hoses and thermostats with great value for money. Mishimoto products in the shop