Works great in my Saab 9000. The car warms up quicker and as the thermostat is constantly adjusting the flow based on the engine temperature (variable between minimum open and full flow) it is the stroke is smooth and there is no noticeable drop when the motor reaches 195 degrees. It just hits and stays. You could call it a mechanical smart thermostat. Better than original parts. Gasket is not included, so be sure to order one.