I replaced the coolant expansion tank on my '00 S. I used an OEM tank from Pelican and Porsche antifreeze. Big thanks to everyone's previous post on this subject; your tech tips were very helpful!! Overall about 4-5 hours and wow those clamps are difficult to reach. I completed the job by accessing the lines from the top.
While the Boxster was down for maintenance I got to drive my Z:
Cheers,
Nick