I doubt it. Manufacturers, and especially ones like Porsche, routinely test the quality and performance of their subcomponents. If they didn't they'd be neglige

I doubt it. Manufacturers, and especially ones like Porsche, routinely test the quality and performance of their subcomponents. If they didn't they'd be negligent. The only plausible answer is that they used the same broken metrics that the engine had been programmed to defeat.