no, the cam is stock. Thanks for the link. I ordered 2 new springs and now I read the spring rates did change too? Our dealer is not aware of it. Ok, its Germany, they don't know that much .

Unfortunately I found more material in the other head and in the oil.

Guess I need to replace them all for a good aftermarket set. I'm afraid that this will happen again.

Any ideas of a good brand? Didn't search yet. Maybe CompCam?