Now before I start, I will say that the ride i was on today was with my Mrs who has just passed her CBT and was on her 125cc Vespa, so speeds were pretty low (50 mph) for the duration of the ride, and the bike / exhaust was not under any particular stress at the time.
The exhaust hanger bracket on my CR-T can completely sheared off during my ride today. With it no longer being supported it meant the exhaust was free to rotate at the joint and drag the can along the road!!!
A combination of the exhaust being pretty loud and me wearing earplugs at the time meant I didn't hear the can scraping along the road behind me, needless to say it is now pretty damn f*cked
So if you own a SC Projects exhaust, make sure you keep a damn close eye on the hanger bracket.