These little things can really help provide some needed restriction and bring a cool look to the back end of the bike. That being said, if not installed properly it can cause the rings to be off center and cause damage and possibly breakage. Take a watch of this video and pay attention to the tips and tricks for alignment.
https://www.tabperformance.com/zombie-rings-p/z-rings.htm?utm_source=Youtube&utm_medium=Video&utm_campaign=New%20zring%20install%20video