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Discussion Starter #1
-custom box for 99-up reg cab silverado built for three JL Audio 12w6's (no longer in box) and with optional amp rack(which used to house the amps) and optional vinly cover which gave flush mounted look to the amps and subs. paid $700, asking $150. It was built by Chris at Performance Motorsports and looked like it came in the truck from the factory. PM me your e-mail address if you want pics.
 

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what is the vol for the box (or for each sub)? is it one chamber per sub or all one big chamber? what size mdf? how much do you have to move the seats forward?
 

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Discussion Starter #4
I'm not sure of the volume per sub but it is one large chamber. I think it's 3/4 mdf, and you will lose about 1 inch of legroom from the all the way back position if you use the optional cover which makes everything look flush mounted.
 
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