[Joshinator99]

Originally Posted by Bangkok_ZL1

Do you have to tune your ECM to use a 160???? How the hell does the ECM know this? these new cars are wild. I remember when I ran a car without the thermostat totally (froze closed so I removed it). Ran great for years without it, just took a while to warm up, and never got warm to hot..... Anyways, wow, new cars man, amazing. Since I live in hot-ass Udon Thani, Thailand, I'd love to change my Thermo down as far as possible. Its damn near December and it was 94 today. Went to the CRV to get the tools to fix a seat belt issue on a friends car and the socket roasted my hand and my CRV windows are totally shaded. There are thre seasons here, Hot, Very Hot, and Freakin Blazing. So the 1st thing I do when I get the ZL1 next week is protect her against the sun. So a low Temp Thermo would be good.

Yep, see the attached screenshot from HP Tuners showing where you need to make the change to 160 once you install the new thermostat. The car has a 194 thermostat setting from the factory, so if the car runs for a while and doesn't get to 194, you get a code.

With the Katech 160 thermostat and new fan settings (see second pic), my car cruises in the 170-180 degree range, which is perfect IMO.