<> DUAL Sub Box w/AMP RACK 2007-2013 GM SIERRA CREW - Sound Off Audio, Inc.
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Xtreme Enclosures


If you have subwoofer(s), type your sub model # here:

(Maximum Size: . Type: )

 Product Description

2007-2014 CHEVROLET Silverado Crew and GMC Sierra Crew Cab trucks.

NOTE:  This sub box will not fit the 2014 1500 (1/2 ton) Crew Cab.  We have another box for the 2014 1500 series crew.

NOTE: Please note that this does not fit the 2007 classic body style.

We have a deeper depth box version listed separately which will fit Kicker L7s!!!

  • Fits dual 8, 10 and 12 inch subwoofers
  • Subwoofers fire down
  • Amp rack in center of box
  • Mounting depth = 6.5 inches
  • Air Space = .65 cubic ft per chamber
  • Speaker terminals included
  • Constructed with MDF wood
  • Charcoal carpet
  • Additional cost for OEM carpet colors to match your interior

Popular subs used by customers for this box:

  • JL Audio 10TW3, 12TW3 and 13TW5
  • Kicker 8, 10 and 12 L5 / L3 square
  • Kicker 8 and 10 L7

Hole cutouts:

  • Standard hole cutout diameter for 8s = 7 inches
  • Standard hole cutout diameter for 10s = 9 1/8
  • Standard hole cutout diameter for 12s = 11 1/8
  • If you don't know the actual hole cutout diameter, choose the standard cutout below.
  • If we don't have your actual diameter listed below, choose the standard cutout, then provide us with your sub model #.  No worries, we can look up the specs of your subs.



  • Order directly from our website or
  • Call us to place order over the phone by calling 850-674-6363

When you order this sub box, please provide us with your sub model # if you have subs already.  You can type the sub model # in the comment section of the order page.

We make custom subwoofer boxes for any vehicle or subwoofer you can imagine. We ship nationwide and have been in business for 20 years. If you have a woofer and you need a speaker box, look no further, these boxes are cnc cut and professionally constructed with pride in the USA; Florida to be exact. Call or text 850-674-6363 for any information. Thanks


 Product Videos

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    https://www.soundoffaudio.com/item.cfm/id/3033 THIS IS AN INST...
  • Chevy or Gmc Crew Cab Amp Rack subwoofer box 2007-2013
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 Product Reviews

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    Posted by Unknown on 13th Dec 2015

    Buying this box saved me the the headache of having to build one! Box came in and I put it in truck and it fit just right! The only very miner complaint that I have is that for the speaker terminal that screw in the box does not come with screws for you to do it yourself. Very little complaint cause I have extra screw laying around and there not expensive but would have been nice to have with the box.

  2. Perfect fit! Great box!

    Posted by Kevin on 12th May 2015

    I bought this box and actually needed the deep enclosure box due to a larger magnet on my speakers and Matt sent me the pods for the box free of charge! Awesome customer service and the box is a perfect fit under the seats. Would definitely recommend to anyone looking at this box!

  3. Very well made, perfect fit.

    Posted by Wayne Wells on 4th May 2015

    This is a very well built custom box for my 07 GMC Sierra. The box got a couple dings from shipping (minor) but all in all I'm very satisfied. The amp rack will work out just fine. Also if he says the box will hold a 6 1/2 deep subwoofer, he is a man of his word. My two 12 inch Rockfords fit perfect and sound amazing. Plenty of room on this down fire box for them to work.

    I will be a repeat customer.

  4. Perfect design! Good Quality

    Posted by Michael on 1st Oct 2014

    This box was custom made by Matt and his team for my 09 GMC Crew Cab, it matches the color of my interior very well and fits under the seats nicely. In my case I have two 12" solo-baric L7's so Matt recommended the deep enclosure and the subs fit very well.

    Would definitely recommend!

We build each sub box and ship within 3-10 business days excluding weekends.
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