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Message: <blockquote data-quote="Jroo" data-source="post: 7821084" data-attributes="member: 574112"><p>I just listened to an Infiniti with a 4th ported through the ski hole. Not a rattle anywhere and he didnt do one bit of deadning at all. Some of this has to do with how solid the car is at the start. Some cars, no matter what have more rattle than others. Outside the car you heard a faint bass hit, but when you opened his doors there it was. I can say if your sub is 4th friendly, but if it is port through that 8" opening which should more than enough port area unless you are trying to be stupid loud. You will have to deaden that rear deck where the port is.</p></blockquote><p></p>

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