The center caps for the Alessio Speedlines are unique to that wheel only. No OEM Porsche center cap will fit that small opening. Send me a picture of your center caps so I can see exactly what you have. The most important thing about your Alessio caps is are all 6 plastic tabs on the backside still there are some broken off. These caps are expensive to find. You can figure about $90 per plastic Alessio Speedline cap and that does not include the either Porsche black crest, "Speedline Corse" or other possible options. Please write to me at my email address: jdorociak@gmail.com

Jim

please contact me if you want to sell your car. I am located in San Jose. Steve 408 425 5057