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Message: <blockquote data-quote="shizzzon" data-source="post: 6208151" data-attributes="member: 590338">well, that's why i dont know what will happen.Either it will lower my tuning which i know it will if used but while lowering tuning to a point where shorter ports will peak closer to my car's peak... will this continue to start increasing spl again as tuning get's closer to car's peak or will the polyfill actually somehow, i dont know how to explain it, just plain prevent an increase in pressure like trying to use a small port area instead of a large one...</blockquote>

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