Th car is used. And had some mods on it I'm trying to figure out how I can tell whether it's the 203 degree or the 180 t stat? It usually stays around 203° but when driving on the highway even after it warmed up the coolant drops to 190 sometimes so I'm wondering if that would mean that it...

Has anyone purchased a 180° thermostat from RIPP Superchargers? Here's the link. http://www.rippmods.com/shop/2011-2014-36l-v6-pentastar-180deg-thermostat I ordered one from them, but I haven't seen where anyone here has bought one from them. They are the only game in town right now. Looking...