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Message: <blockquote data-quote="B boyes" data-source="post: 1608571" data-attributes="member: 36328"><p>Okay, I have a fix for down firing sub boxes. Not a stereo guy just a machinist. So let me know if this woks. Every box I see is down firing and, if I understand correctly  the screws strip out during off-roading. 1st thought was turn the sub box over, but that must not work correctly. So I'm going to machine an aluminum ring for clearance on the ID for the sub maybe .250" or .375" thick. I will either stud the ring and tack weld the bolts so they will not come loose or blind tap the holes and red lock tight in position. I will put the same BC pattern as the sub, Same idea as a studded cylinder head. This should hold up under a full send! LOL.  I'm not sure if this will effect the CFM that the sub will require. What are your thoughts?</p></blockquote><p></p>