Below is a link to a series of 4 stretches for the IT Band. In addition to doing SMR (Self Myofascial Release) via the foam roller, these stretches will help address the typical tightness and imbalance of the IT Band.
First do your foam roller then follow with this series. Additionally, work to the get the Quadriceps online in particular the Rectus Femoris. You can accomplish this by doing simple contract and relax movements such as Squatting or lunging actions. When in the standing position of either move, focus on contracting the Rectus. Do this is a slow fashion to be certain the muscle contracts, you can enhance this by providing tactile feedback aka touch the Rectus.