JL Audio Stealthbox® Custom-fit fiberglass enclosure with two 12" 12TW3-D8 subwoofers — fits 2009-up Ford F-150 SuperCrew and SuperDuty Crew Cab trucks

Product highlights:

• Stealthbox custom-fit subwoofer
• sealed fiberglass enclosure
• two 12" 12TW3-D8 subwoofers
• installs under the rear seat
• 800 watts RMS power handling (1600 watts peak power)
• 2-ohm total impedance
• requires removal of under-seat storage tray and factory sub (if present)
• warranty: 2 years
• MFR # 94661