I agree with RandallNeighbour 100%. Change all 4 if possible. All of mine were covered under an extended warranty but they would only cover each individual one as they expired! No cash out of pocket, but LOTS of time in and out of the dealership!
BTW--RandallNeighbour, is that for an OE (Bosch?) sensor? Thats a great price and I believe on my invoice that the dealership would have billed me $245/sensor had I not had the warranty! Makes me rethink the extended warranty I purchased since you can buy parts rather cheap online if you look and can do the labor yourself! Oh well...my first Porsche and didn't want to take the chance of something happening since everything you hear in the auto world is how expensive and how hard these cars are to work on. Obviously not in the Boxsters' case. This has been the easiest car I have ever done maintenance on!
