This morning I fitted the headset hooks that a fabricated. They seem to work well. I also adjusted the yellow and red terrain warnings in the moving map to heights better suited for VFR.
In the from air intakes there are small air dams to obstruct airflow onto cylinders 1 & 2. I decided to remove these and see how it changes the CHT's in flight. Those two cylinders are running hotter than the rest. #6 is also similar, most likely due to the oil cooler being ducted from behind it.