Stock exhaust system blew apart twice!
I have a 2nd gen. I mixed half 100 octane with 91 octane and took a 17 mile mountain ride from Silicon Valley to Santa Cruz. In the middle of the ride, my cat housing cracked all the way around and separted near the exhause pipe connector. This happened once before where two of my header pipes cracked. Don't know if I was using race fuel when this happened. My bike does not run hot. My hypothesis is that the larger amount of unburned fuel from the racing fuel heated the shit out of the cat and exhaust system causing the failure. Anyone else heard of this hapenning?