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Summer Closeout Up to 70% off select models

Save on select car audio, mobile video, installation gear, and more while supplies last.

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1999 - Ported / Vented - Subwoofer Boxes

Different enclosure types such as bass reflex, acoustic suspension, infinite baffle, horn loaded, tapped horn, transmission line and bandpass are available for subwoofers or subs. Many subwoofer boxes are constructed with medium-density fiberboard, oriented strand board (OSB), plywood, plastic or other dense materials.
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  1. Qpower QBGMCX99210 Subwoofer enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500
    QPower QBGMCX99210 Ported / Vented Up-Firing Subwoofer Enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 Truck - ( Black Bed-Liner )
    $238.99
    Out of stock
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    • Designed to fit 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 truck
    • Ported / Vented 1.2 cubic foot (Per Driver) enclosure for (2) - 10 inch subwoofers
    • Subwoofer enclosure is finished in Black Bed-Liner
    • Enclosure requires the use of shallow mount 10 inch drivers for easy fitment
    • Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
    • Glued and internally braced for minimal resonance
    Learn More
  2. Qpower QBGMCX99212 Subwoofer enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500
    QPower QBGMCX99212 Ported / Vented Up-Firing Subwoofer Enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 Truck - ( Black Bed-Liner )
    $238.99
    Out of stock
    Add to Wish List Add to Compare
    • Designed to fit 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 truck
    • Ported / Vented 1.2 cubic foot (Per Driver) enclosure for (2) - 12 inch subwoofers
    • Subwoofer enclosure is finished in Black Bed-Liner
    • Enclosure requires the use of shallow mount 12 inch drivers for easy fitment
    • Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
    • Glued and internally braced for minimal resonance
    Learn More
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Now Shopping by
  1. Vehicle Year
    1999
  2. Sub enclosure type
    Ported / Vented
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Vehicle Model
  1. Sierra 2 items
  2. Silverado 2 items
Vehicle Year
  1. 1996 2 items
  2. 1997 2 items
  3. 1998 2 items
  4. 1999 2 items
  5. 2000 6 items
  6. 2001 6 items
  7. 2002 8 items
  8. 2003 8 items
  9. 2004 11 items
  10. 2005 11 items
  11. 2006 11 items
  12. 2007 13 items
  13. 2008 13 items
  14. 2009 10 items
  15. 2010 10 items
  16. 2011 10 items
  17. 2012 10 items
  18. 2013 10 items
  19. 2014 11 items
  20. 2015 11 items
  21. 2016 11 items
  22. 2017 11 items
  23. 2018 5 items
Driver Size
  1. 10 inch 1 item
  2. 12 inch 1 item
Internal Airspace (Per woofer)
  1. $1.00 - $2.00 2 items
Sub enclosure type
  1. Ported / Vented 2 items
  2. Sealed 8 items
Mounting Depth
Inches
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