My two cents regarding oil catch cans. I have one and also installed the RB upgraded pcv valve about nine months after the occ. With the RB pcv I have NO oil in the occ after 10k miles. Car has 128k miles, fbo with oem turbos running 18 psi. Definitely recommend the $60 pcv upgrade before , or in addition to, a $120 occ. 2.5 cents
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