Great advice.
One thing I'm looking for is a "generic" Bosch O2 sensor. It's the same sensor that is in the car, just does not have the connector on the other end that only fits the 986 & 996 causing the doubled price. We use them in the 928 because they are half the price. As long as you solder the connection and use heat-shrink casing it's as good as the original part. Best thing is you don't have to trace down the whole wire and re-route the new connector. I haven't seen where the connectors go in the Boxster, but in the 928 it's about a 2 hour job to run it all the way to the engine.
Half price and half the time is gooooood.
Anybody know which Bosch O2 "generic" sensor would be the correct fitting one for the Boxster?