I got my bike I believe back in May. I told the story about another rider showing up at our local track with a new SX too. During one of his motos, one the spring hooks welded to his pipe, pulled loose and left a gapping hole in the pipe. I just noticed on my bike that there is a crack next to one of the spring hook welds, so I took that spring loose for now. This past Thursday at our local night practice, a rider next to me with a 13SX, had to replace his pipe because one of the hooks pulled loose from the pipe. Now I don't think it's an epidemic, but I think I may have an idea on what's going on. A couple of weeks ago, I removed my pipe to give it a good cleaning and polishing. I noticed that the springs tension is extremely tight. Or at least compared to my Cr. I was really shocked at the amount of pull it took to get the springs off and back on. I'm sure to the engineers it was necessary, but I don't think so. With that much tension, vibration, heating, cooling and anealing, the thin metal is getting fatigue and pulling loose. I've ridden my Cr with one spring for quite sometime with no problems. In my opinion, that much tension is not necessary. I'm going to order a Platinum pipe and R304 silencer next week. Then I'm going to M&D Hardware, and get a couple of stainless springs with somewhere South of piano string tight. All they do is hold the pipe inside the exhaust port, along with the 2 other mount bolts.