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It may not happen with mine since I have the line updates from Kevin at ultimate. Both valve and p trap. Also just stocking up since I was ordering other stuff and am not due to change till fall
With all the tests I have done on mine (see my thread on Chronic oil leak) I came to the conclusion that the new 04 filter works, at least in combo with check valves on the inlet side.
Ok, Porsche has stock of the specific turbo little filter, ends 04, is a Mann item, made in Austria and has no Porsche wording or part number on it at all