<![CDATA[Sound Off Audio, Inc.: New Products - 2007-2013 New Body Style Extended Cab]]> https://www.soundoffaudio.com Sat, 04 Apr 2026 01:43:19 +0000 <![CDATA[SINGLE SUB BOX 2007-2013 GMC SIERRA EXT CAB]]> https://www.soundoffaudio.com/single-sub-box-2007-2013-gmc-sierra-ext-cab/ Wed, 20 Nov 2013 14:07:44 +0000 https://www.soundoffaudio.com/single-sub-box-2007-2013-gmc-sierra-ext-cab/ SINGLE SUB BOX 2007-2013 GMC SIERRA EXT CAB

Fits 2007-2013 Chevy Silverado Extended Cab and GMC Sierra Extended Cab trucks

  • Fits single 8 inch, 10 inch, and 12 inch subwoofer
  • Subwoofer fires down
  • 5/8 inch MDF
  • Air space = .6 cubic ft per sub
  • Mounting depth for 8 inch sub = 6 inches
  • ..

    Price: $199.00

    ]]> SINGLE SUB BOX 2007-2013 GMC SIERRA EXT CAB

    Fits 2007-2013 Chevy Silverado Extended Cab and GMC Sierra Extended Cab trucks

    • Fits single 8 inch, 10 inch, and 12 inch subwoofer
    • Subwoofer fires down
    • 5/8 inch MDF
    • Air space = .6 cubic ft per sub
    • Mounting depth for 8 inch sub = 6 inches
    • ..

      Price: $199.00

      ]]> Fits 2007-2013 Chevy Silverado Extended Cab and GMC Sierra Extended Cab trucks

      • Fits single 8 inch, 10 inch, and 12 inch subwoofer
      • Subwoofer fires down
      • 5/8 inch MDF
      • Air space = .6 cubic ft per sub
      • Mounting depth for 8 inch sub = 6 inches
      • ..]]> <![CDATA[DUAL SUB BOX 2007-2013 GM SIERRA EXTENDED CAB]]> https://www.soundoffaudio.com/dual-sub-box-2007-2013-gm-sierra-extended-cab/ Sat, 31 Aug 2013 22:21:01 +0000 https://www.soundoffaudio.com/dual-sub-box-2007-2013-gm-sierra-extended-cab/ DUAL SUB BOX 2007-2013 GM SIERRA EXTENDED CAB
        • 2007-2013 CHEVROLET SILVERADO and GM SIERRA EXTENDED CAB TRUCK

        Note: This does not 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.Price: $249.00

        ]]>         DUAL SUB BOX 2007-2013 GM SIERRA EXTENDED CAB
        • 2007-2013 CHEVROLET SILVERADO and GM SIERRA EXTENDED CAB TRUCK

        Note: This does not 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.Price: $249.00

        ]]>
      • 2007-2013 CHEVROLET SILVERADO and GM SIERRA EXTENDED CAB TRUCK

      Note: This does not 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. <![CDATA[Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab]]> https://www.soundoffaudio.com/ported-sub-box-07-13-gmc-sierra-chevy-silverado-extended-cab/ Sat, 06 Jul 2013 13:09:18 +0000 https://www.soundoffaudio.com/ported-sub-box-07-13-gmc-sierra-chevy-silverado-extended-cab/ Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab

      2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..

      Price: $399.00

      ]]> Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab

      2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..

      Price: $399.00

      ]]>       2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..]]> <![CDATA[Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab]]> https://www.soundoffaudio.com/ported-sub-box-07-13-gmc-sierra-chevy-silverado-extended-cab/ Sat, 06 Jul 2013 13:09:18 +0000 https://www.soundoffaudio.com/ported-sub-box-07-13-gmc-sierra-chevy-silverado-extended-cab/ Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab

      2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..

      Price: $399.00

      ]]> Ported Sub box 07-13 GMC Sierra/Chevy Silverado Extended Cab

      2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..

      Price: $399.00

      ]]>       2007-2013 GMC Sierra and Chevy Silverado Extended cab dual ported sub enclosure

      Note: This does not fit 2007 Old Classic Body Style. If you have the 2007 Extended Cab, please check to see if ..]]>