As they've said, you're fine running the stock t-stat with the tune. If you decide to go with a lower t-stat (170 or 180) you'll need to manually adjust the fan settings with the tuner to get the benefits.
In the summer I found my car was frequently well over 203 degrees and I could feel a noticeable power loss. I threw a 180 on and it ran much stronger in the dog days of summer, car never got above 190 in 100+ degree weather.
The car still runs great now that it's winter too, the car hovers around 183.
In the summer I found my car was frequently well over 203 degrees and I could feel a noticeable power loss. I threw a 180 on and it ran much stronger in the dog days of summer, car never got above 190 in 100+ degree weather.
The car still runs great now that it's winter too, the car hovers around 183.
