<> Single DEEP SUB BOX-passenger 2014-18 Chevy Silverado / GMC Crew - Sound Off Audio, Inc.
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Xtreme Enclosures

Single DEEP SUB BOX-passenger 2014-18 Chevy Silverado / GMC Crew

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

(Maximum Size: . Type: )

 Product Description


  • Fits single 8, 10 and 12
  • Fits on the passenger side under the rear seat. (we do have another box on our website that fits on the driver's side under the rear seat)
  • Air space = .65 cubic ft
  • Mounting depth 8 and 10 = 6 inches
  • Mounting depth for the 12 inch sub = 5 inches
  • fits under rear seat on the passenger side
  • MDF wood
  • speaker terminal included.  We don't ship the terminal installed.  We ship the sub box with the individually wrapped terminal inside.
  • Charcoal carpet
  • available in OEM colors for extra fee

NOTE: Boxes are carpeted in charcoal. OEM carpet colors available as option for additional cost.

NOTE: Make sure your subwoofer will work with the air space we listed. If not sure, just ask us.

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.

Popular subs customers use for this box: 

  • Alpine SWR-T8
  • Alpine SWR-T10
  • Pioneer TS-SW2002D2 8 inch 
  • Pioneer TS-SW2501S2|S4  10 inch
  • Pioneer TS-SW3002S4 12 inch
  • Kicker CompVT 8s, 10s and 12s
  • Sundown E series subwoofers
  • Kicker Comp 8s, 10s and 12s
  • Kicker CompD and CompS
  • JL Audio W1, W0 and TW3

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. This ensures we cut the holes to match your subwoofers since several subs have different hole diameters. 

Any questions, please contact us 850-674-6363 or [email protected]

Our sub boxes are built by us! CNC precision cut and assembled by hand.

We guarantee our sub box will not fall apart.

Our competitors sell cheap pre-fab sub boxes that can't match or beat the strength and sound of our speaker boxes.

You will not be disappointed with our sub box.


  • Customers need to check their subwoofers' specifications to see if they will fit the sub box.  Customers may contact us if they are not sure.
  • Customers are responsible for providing us with their subwoofer model # at the time of purchase, so we can ensure it will fit.  
  • If customer doesn't have a subwoofer at the time of purchase, then ask us for our recommendation as to which subs will fit.  
  • We can't be held liable if a customer chooses a subwoofer larger than the specs provided for our sub box. 

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GMCRW2015 SINGLE-passenger side
Ships within 3-10 business days. We build each box order in the order they come in.
Calculated at checkout
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