I've blown a couple of pipes off on track days. The first time it scared the hell out of me, thought the engine was toast!Blew a hose off under boost. Holy shit but that gets your attention when your only throttle is pre-blower.
Nailed it uphill, wound it right out then went for another gear and the engine just pegged itself to the limiter. I thought the throttle had jammed open. Effectively it had, though at least the supercharger was only adding alarming screaming noises and not boost.
walked past them (again)What Have You Done To Your Mx5 Today?