I know this post is old but that was when she had implants with Dr. Revis. She did massively increase back then from 2000ccs to like 3500ccs over the course of several months.
She was at 4200 briefly. Before big problems occurred. You've probably seen her 4200cc video from right after her surgery, some time ago.
If not, just Google "Brittany Elizabeth 4200cc" & you'll find it immediately.