Q Power TUNDRA10 4DOOR Dual 10-Inch Subwoofer Enclosure for 2007-2016 Toyota Tundra Double Cab Trucks Dual 10" Custom Fit Subwoofer Down Firing Truck Subwoofer. Enclosure For 2007-2016 Toyota Tundra Double Cab. Trucks Constructed out of 5/8" MDFIndependent Subwoofer Chambers with Separate Terminal Cups Finished in a High Quality Charcoal Carpet for an Attractive Appearance