Hello

I live in a hot area (avg. 100 F in summer).

Is there any harm to use an aftermarket racing thermostat (e.g. mishimoto) for just not boosting, but for also daily use , combined with a appropriate fan sensor ?

What happens when the engine's avg operating temp drops by 10 degrees in long term ?

 

you can use it no problem.
ive had a 170 thermo and fan switch for over a year already

o and the bad side is that the engine runs cooler, sorry to be the barer of bad news