[san rensho]

I wouldn't panic too much. I've had about that amount of plastic in my filter after an oil change. It's chain guide plastic which is always shed by 986 motors. If the guides get really worn, the cam timing can get thrown off. As someone said before, check the cam deviation.

If its way off, greater than 6, then you may have a problem. Get a baseline and see if it gets worse with time, if so, then you may need to do something.

I get plastic like that all the time and the cam deviation has barely changed in the 25k miles that I have had the car.

If you are really concerned, just look at you filter in 1k miles to check for debris. Next time you change the oil, drop the sump plate and check if you have lots of plastic debris in there.

Ferrous metal is much more serious ang you have none on your mag plug, so I don't think you have much to worry about.