Poly foam in subwoofer enclosure?

[Droid_Junky]

Has anyone opened it up to see if it already has any installed? It's such a cheap mod if it doesn't. thanks.

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[gsxr1300]

I unscrewed the woofer today to check but it seems like its also glued into the enclosure, it wouldn't come out.

 

[Aznjason02]

There is actually a bolt on the backside of the sub enclosure that connects to the magnet. I put poly foam in mine, didn't seem to make a difference in sound to me.

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