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K&N filter- pop off valve


Vehicle Information: Year: 1978; Body Type: Targa;

My recently purchased 78 911 SC has an installed pop off valve, installed by the PO. It also has a K&N filter. my concern/question is that when I removed the filter I noticed that the pleats over the pop-0ff valve are compressed out of shape and seem to be up againstthe pop off valve. Does that render the p.o.v ineffective? What would you suggest to rectify? thank you,Lee

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