Here is my finished shutter installation. I will be testing next week to see how it changes engine temps. With tape on my oil cooler 912uls was running at 170 degrees on a 60 degree day. This shutter can cover up to 80% of the oil cooler, so I am confident it will work. I will update this post after I complete testing. The shutter can be removed in a few minutes by cutting wire ties and disconnecting the push pull cable.
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