Ok, so if it is detrimental to use it, then I'll leave it off.
I removed my Balance Flow kit and have the space back, now. The cover sprawled out a bit, over the years of being off and the holes are about an inch from where they once were. I was having a heck of a time getting them lined back up and fighting the firewall insulation at the same time. I began to wonder if it was even worth the trouble, so I walked away from it last night.