Need to change thermostat in 2003 grand am 3.4

I have done this and the procedure calls for removing the exhaust crossover which you don't really have to do however it is a tight fit and probably will make life easier to get a wobble extension since some of these bolts you cant get right over. It is located on the driver side under the exhaust crossover and a few small waterlines must be removed in order to access it. If I remember correctly the bottom bolt on the housing does not have to be taken out all the way to get it off. the hard part is getting to bolts loose, Just take your time and realize its a hard place to work in.