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Originally Posted by Porschekid
I heard taking off the foam-type part of the filter and leaving just the paper part of the stock filter can improve air-flow. I haven't tried it myself though. Probably safer than trying the K & N.
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I have taken off the foam part of the filter...just ripped it off. I didn't do it for any performance gains as it should be obvious that "getting more airflow" into the Boxster just isn't needed/going to happen. As MNBoxster said, the stock filter can already flow more air than the engine will ever demand. If it's sound you want...then de-snorkel and (optional) rip the foam from the filter. No costs, no performance gain, GREAT sound!
