You can't go wrong using original equipment (OE) parts.
I recommend you price the OE rotors and pads via Pelican Parts and other Porsche specific parts suppliers. Then check out RockAuto to see what the exact same parts cost from them and also the no-name brand parts for rotors and pads.
I replaced all four rotors and pads on my 99 Boxster for under $200.00 to include a brake parts kit (new retainer clips, bolts, fasteners, etc.) from Pelican Parts. I purchased the rotors and pads from RockAuto.
Of course, you have much better brakes on a Boxster S than what I have on a 2.5L Boxster so your costs will be higher.
I am most proud of the fact that I did the brake job myself. The cost savings on parts and labor was just icing on the cake.
Good Luck!
Just my two cents.
MNC-I
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