I own a 2013 f4 RR it has 5000km on it not miles ! the other day I noticed the tail ( license plate bracket ) that is held on bottom of exhaust by 3 bolts was getting loose , under inspection it actually has ripped out the center bolt near rear of bike causing the stainless steel of the muffler shell to rip around the rivets and right down the center of the under part of muffler shell , it has ripped so bad I cant figure a way to repair it let alone re weld the bolt that need to be there to hold the tail , I have contacted MV to see if they can help me out ? I assume I need a new muffler ? anyone had this problem my bike is not under warranty but is so new I cant imagine this happening already ! Bike has never been down or dropped !