I know, I know. This is an inexpensive thermos that Jet Performance sells. Other than that, it works well and has reduced my engine's operating temperature significantly. My 2014 Ram is running a pretty cool Diablo song and loads of goodies. I was apprehensive about pushing extra ponies when the stock temp started to rise. If you have a tuner, set the fan to 180 with the installed one and you will be happy.