Drilliong the t-stat makes it take longer to warm up....180 just doesn't allow the heat to blow that hot. I never had a problem with it in my car, but I wasn't drilled though last winter. But I did put the 180* in Jan and it was fine for me.

a drilled t-stat also aids in keeping the car cool. as we all know, heat robs power, and those forced induction folks need all of the help they can get.

Thanks for responding, but how exactly dose it help keep it cooler, by taking the temperature dose it tell the computer to force in more cold air, through the intake or what? Remmber I am nub please to help nub. Thanks for your response, please help a nub out.
Thank you.

Instead of the t-stat opening at 195 itll open at 180. Thats why your car runs cooler with a 180 t-stat. Its easy to do even for someone with little car skills.

The thermostat in your car is not electrical. It is put in a the flow of the coolant. When cold the metal of the thermostat is contracted and this keeps the thermostat closed. By being closed this slows the flow of coolant through the motor allowing it to heat up. When the water temperature reaches the thermostat temperature range the metal of the thermostat expands and opens the passage increasing water flow. With this open and closing effect it regulates the amount of cooling allowed to the engine. This regulates the temperature of the motor.

if I were to put in a 180 would I have to get the PCM reprogrammed?

i dont think you would need to, anything over 170 degrees the computer is happy with.

i use a 180 year round no problems at all, winters get pretty cold in canada here

Same here, similar weather. I have 2 holes in mine. I'm happy with it.