THANK YOU FOR YOUR PATIENCE. BLACK 12 DUAL SEALED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXTENDED-CAB 99-06 & 07 CLASSIC. CUTOUT DIAMETER: 11 1/8. TOTAL AIR VOLUME: 1.55 CUBIC FT. VOLUME PER SUBWOOFER: 0.78 CUBIC FT. 5/8 HIGH DENSITY MDF WOOD. + MAINLY SEALED WITH HIGH QUALITY SILICONE +. FITS UNDER REAR SEAT. NOT ALL 12 SUB’S WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUB’S. The item “Gmc Sierra Extended-Cab 99-2006 12 Dual Sub Box Subwoofer Enclosure Down Firing” is in sale since Sunday, November 18, 2018. This item is in the category “Consumer Electronics\Vehicle Electronics & GPS\Car Audio & Video Installation\Speaker/Sub. Enclosures”. The seller is “online-ground-shaker” and is located in Los Angeles, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Ecuador, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam, Russian federation.
- Number of Ports: Sealed
- Country/Region of Manufacture: United States
- MPN: Does Not Apply
- Fitment: Under Seat
- Speaker Size: 12″
- Brand: Ground-shaker