Review on 🌡️ Mishimoto MMTS-CHV-01DH High-Temperature Racing Thermostat for Chevrolet GMC 6.6L Duramax (2001-2016) by Pranav Osman

My 2011 LML only got 150-170F depending on ambient temperature and driving style (Coolant Temp via Edge Insight). Didn't want factory thermostats so got this Mishimoto. I'd settle for the factory temps rather than the higher ones (standard 180 and 185), but it was either those or colder ones if you get Mishimotos (174 and 170 I think). Aside from dropping the propeller, installation was fairly easy and took no more than a couple of hours. I was able to replace mine without removing the belt and A/C compressor, but it was stuck. Now my truck runs between 180-195 depending on driving style, it seems to stay in the 185-190 range most of the time as it should.