Well fan is all the way installed now. Slow kicks in at 180, fast kicks in at 200. Cools like a charm. Yesterday in Napa,CA was very hot. I drove around in city traffic for a long time and not once did I pass 200, always dipping cooler once the second speed kicked in. The beauty of this fan selection is that it fills the stock shroud so I kept it, thereby keeping that "stock" look. REMEMBER, this fan cost me $9.99 at pic n pull! The thermostats(two) cost me 60 bucks total, + a couple of bucks for wire at the local hardware. Mounting to the stock shroud required a bit of original shroud trimming, but was easy to do.