<> Ported Sub Box 1999-2006 GM Sierra Extended Cab truck - SoundOffAudio
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  • Available in tan carpet for additional fee
Xtreme Enclosures

PORTED DUAL SUB BOX 1999-2006 GM SIERRA EXTENDED CAB

RRP: $249.95
$225.00 (You save $24.95)
If you have subwoofer(s), type your sub model # here:

(Maximum Size: . Type: )

 Product Description

1999-2006 Gmc Sierra Extended Cab

1999-2006 Chevrolet Silverado Extended Cab

Note: This will also fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if you have the new or old body style. If unsure, please contact us.

  • Subs fire forward
  • Fits dual 8 and 10 inch subwoofers
  • Ported
  • Mounting depth = 7 inches
  • Air Space = 1.1 cubic ft per sub
  • Fits under rear seat
  • Tuned to 38 hz
  • We can adjust the tuning if you request it
  • Charcoal Carpet (box in one of the photos is carpeted in tan which is extra fee)
  • Speaker terminals
  • MDF wood
  • OEM colors available at an additional cost. 

Hole cutouts: 

  • Standard hole cutout diameter for 8s = 7 inches
  • Standard hole cutout diameter for 10s = 9 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

 

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.

 Product Videos

CHEVROLET EXTENDED CAB VENTED subwoofer BOX 1999-2006
  • CHEVROLET EXTENDED CAB VENTED subwoofer BOX 1999-2006

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SKU:
GMEC9906 PORTED
Availability:
We build each sub box and ship within 3-10 business days excluding weekends.
Shipping:
Calculated at checkout
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