bought 03 S today

[Perfectlap]

Are you only the second owner? Try and track down where the car was sold new, maybe its in your owner's manual stamped on the back. Give them a call and ask if they can send you the records. If the last owner had it done out of warranty I'm sure he would have had it done by a dealer anyway. I'm guessing the average Porsche owner, even a used buyer, usually has major work like this done by a dealer and not an independent shop. There aren't that many and most mechanics who don't regularly fix Porsches won't touch them.