THANK YOU FOR YOUR PATIENCE. BLACK 12 DUAL PORTED SUB BOX, FITS CHEVY SILVERADO & GMC SIERRA EXT-CAB 99-06 & 07 CLASSIC. CUTOUT DIAMETER: 11 1/8. 2 SLOT PORT (DIMENSIONS: H-1 1/2 W-3 1/2 L-11 1/2). TOTAL AIR VOLUME: 1.62 CUBIC FT. VOLUME PER SUBWOOFER: 0.81 CUBIC FT. MOUNTING DEPTH: 6 3/4. 5/8 HIGH DENSITY MDF WOOD. MAINLY SEALED WITH HIGH QUALITY SILICONE. FITS UNDER REAR SEAT. NOT ALL SUBS WILL FIT DUE TO THE CUTOUT DIAMETER OR MOUNTING DEPTH SO PLEASE CHECK THE DIMENSIONS TO MAKE SURE THIS BOX SUITS YOUR SUBS. The item “12 Dual Ported 1999-06 Chevy Silverado Extended Cab Subwoofer Enclosure Sub Box” is in sale since Friday, September 11, 2020. 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, 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, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, 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, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion, Viet nam.
- Number of Ports: Double
- Country/Region of Manufacture: United States
- MPN: Does Not Apply
- Compatible Vehicle Make: Chevrolet
- Fitment: Under Seat
- Speaker Size: 12″
- Brand: Ground-shaker