Hey in the next week or so, a guy from this forum is gona help me do my ss90 install. He told me that he had issues with his ZZP s/c gasket that came with the ssm90 install kit and recommended that I buy an OEM one from the dealer. He said it was giving him vacuum leaks and once he put the OEM one in it was fine. Could he of maybe got a faulty gasket or something? Should i be fine or would you guys think i should get a new OEM one? thanks.;