Spent an hour under the Boxster tonight... I have this rattle that I have been believing was the exhaust for some time now. Went completely over the exhaust and I don't think that is it. It is a rattle sensitive to engine load, not speed. Goes away under high load/high RPM, and isn't at idle. It's just during low rpm-crusing and under slight power.
I'm starting to think it sounds rotational. e.g. pressure plate/throwout bearing related.
I think I'll drop it by Callas on monday. I want it made right before it turns out to be something bad
