Upgrade to a lower thermostat so that your engine starts cooling sooner. This Steeda 160°F thermostat is a great way to upgrade your Mustang.
Cooler temperature.The factory thermostat is a hot 190°F. This thermostat opens to start circulating coolant at 160°F, helping to control temperature quicker. A cooler thermostat can help you run more compression, richer air/fuel ratio, and more ignition advance when paired with other cooling upgrades.