Ceramic rotors are an option on newer Boxsters. I'm pretty sure they weren't available in 2000. A look at your rotors should tell.
http://www.porsche.com/usa/models/boxster/boxster-s/featuresandspecs/?gtabindex=4
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2000S Ocean Blue Metallic- 116K
3X Water Pump, Clear side markers, Crios Mod, Front engine mount, Flywheel, clutch, RMS, AOS, MAF, serpentine belt, power brake vacuum line, battery, 2X CV boots, Fuel filter, Oil filler tube, 3X ignition switch, 90K service, gas cap, Coolant tank
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