Phanteks Shift Base Air Seal for 140mm Fan

When I received my Phanteks Shift case, I, like many others, noticed there were many problems caused by poor airflow within the otherwise great looking case. I figured out the airflow issues, and this print is just one of many modifications I made. I wanted to ensure the case was positive pressure as much as possible, but as I plugged other holes up, I wanted to prevent fresh air from leaking back out through the base. I was also concerned about hot PSU exhaust leaking back into the case. Previo