SoundBox Chevy Silverado / GMC Sierra Crew Cab 2014-2018 Dual 12" Subwoofer Enclosure, Ported

SoundBox Enclosures - Trusted by industry experts for years.  THE BEST CHOICE IN PERFORMANCE AND RELIABILITY When it comes to prefabricated or vehicle specific enclosure SoundBox knows there are a lot of options. Corner cutting is not the route taken by SoundBox. SoundBox brings you quality performance and reliability keeping affordability in mind. PRODUCT SPECIFICATIONS SoundBox Formed Series Vehicle Specific Enclosure Vehicle: Silverado/ GMC Sierra Crew Cab 2014-2018 Subwoofer Size: Double 12" Cutout Diameter: 11" Fitment: Fits in Truck Cab, Under Rear Seat Finish: Industrial Grade Carpet Chambers: Separate Subwoofer Chambers Subwoofer Firing Direction: Down-Firing MDF Thickness: 5/8” Industrial Grade MDF Airspace (Total): 1.38 Cubic Feet Volume (Per Subwoofer): 0.69 Cubic Feet Enclosure Weight: Lbs. Mounting Depth: 6” Magnet Diameter: Dimension:  Authorized Internet Retailer One Year Manufacturer’s Warranty VEHICLE FITMENT: Silverado/ GMC Sierra Crew Cab 2014-2018 INSTALLATION N