[Perfectlap]

Well for $150 or literally 25% of what the dealer will charge why not. But I think someone mentioned once that Porsche have pretty strict testing of these before they are installed. There is apparently a wide variance on quality by Bosch. What doesn't make the cut goes on Amazon.
I guess the issue is do you want to replace it every two years for $150 or every 8 years for $600.