2009 -2018 Dodge Quad cab. Pro-Poly Subwoofer Box sub Box 2X12Fits 2009 2015 Dodge Ram Quad Cab with 60 40 seats or bench seat The hardest hit sub box for the dodge quad cab Armor Coated With High Pressure Polyurethane Bed Liner Material Increases The Base up to three times , stiffens the wood and no air leaks Air Volume 1. 00 Cubic Feet Per sides Mounting Depth 7'' with the Magnet diameter less than 6'' Material 5 8'' M. D. F Made in the U. S. A Dimensions: 56" x 9" x 20"