Honestly, unless you hit something or have your car modded for Le Mans, you will never know the difference in strength between PC and non PC. Any fractures or failures would likely be the result of a factory defect rather than a PC-related problem.
2014 Porsche 911 Turbo S - FOR SALE
2010 BMW M3 (e90) - SOLD
2005 Corvette C6 - SOLD