I've had the 180 and 160 stat installed and they both run warmer than advertised. They 160 in my engine runs about 178 all day long and won't drop below that even with both fans on. I'd go with the 160stat. All the settings in the pcm that have to do with temp are no higher than 130 deg. So you'll be way ahead of that if that's what you're worried about.



allen