Q Power QBFORD102009DF Dual 10"  Down Firing Armor Coated Subwoofer Enclosure for 2009-2016 F-150 Super Crew Trucks Dual 10" Down Firing Subwoofer Enclosure Fits 2009-2016 Ford F-150 Super Crew Trucks Armor Coated Lined Finish for Maximum Strength Down Firing Design for Maximum Bass and Subwoofer Protection Separate Chambers For Enhanced Bass Response