Originally Posted by Bungholio
I am curious about this too(the melting right rear signal). I have the flush mounts on my 530 but have been stopped by NF rangers and told my flush mounts are not legal for road riding. They were not specific about why but may be not far enough apart and/or too small. My SIL put these on his WR250R and they are pretty damn good.
I think with the stock muffler melting is not an issue, but put on the FMF and it's toast time.
some jurisdictions have specific guidelines in the traffic code/act stating
the width requirements, that might be it or they're bored!