[turbocarrera]

My B&B's are 12 years old, have never cracked, and have enough heat to make me sweat in sub-zero temperatures. I've heard some stories about B&B but mine have been fantastic. While I don't track my car, it does alot of high-speed highway driving where it rarely goes below 0.6bar - for 2 hours. Maybe the lack of thermal cycling is one reason they have lasted so long - that and I've always kept the CIS pressures in spec.