I have had license plates fracture and break off before...I believed mainly due to only 2 anchor points...which allowed to much movement resulting in metal fatigue and fracture. So I mounted my current plate down with 4 pop rivets...eliminating the ability to vibrate. This worked well for quite some time. This did leave "wings" of about a 1 inch overhang where the plate extended beyond the tail fender. But when I put the MRD-SSW on...the exhaust was aimed directly at that wing sticking out. After a few months of riding 475 with MRD-SSW...the exhaust pulses hit my plate with enough force to cause the plate to fracture from top rivet to bottom rivet on the exhaust side. Last night on my way home it apparently broke off...loosing about 25% of my plate. If I ever figure out a way to mount a plate and have it live on the back of my bike...I will let you know. Anybody else experience this?