The Dual Low boxes have 1.6cuft total of airspace and share airspace with a brace in the middle. Installation does require the removal of the fold out cargo trays or the hard storage compartment covers for the box to drop into place. This version of the box does not require the rear seat to be lifted, but seat spacers could be used to lift the seat if more clearance is desired. This is the full width subwoofer box version for this truck and takes up the entire cargo space under the rear seat. This is the Dual Low version of our 2009-up Dodge Ram Crew Cab sub box. The quality speaks for itself and in all the years we have been shipping these we have never had to warranty one. We have shipped our Dodge Ram subwoofer boxes all over North American, including Hawaii and Alaska, a ton of them to Canada, and even recently shipped one all the way to Norway. With our local success of our boxes, we decided to sell them online in 2010 and we haven’t been able to keep up since. We started building our Dodge Ram sub boxes around 2006 because of the lack of high quality solutions that we saw on the market. 2009-2018 Dodge Ram Quad Cab Sub Box Dual Low

Sub box for dodge ram