has anyone ever had to replace their OEM thermostat quite frequently? ive replaced mine already in less than a year, or if maybe my mishimoto radiator has gone bad

 

Still on my original oem thermostat and my car has over 110k miles with an Mishimoto radiator. You probably should give us more information on what's going on and what you've tried/diagnosed yourself, so we can get a better understanding what is going on to help you.