Qpower Qbfordff09208 8 Inch Dual Port Subwoofer Enclosure Box With Underseat Down Fire For Ford F150 Super Crew And Ford F250 And 350 Super Duty : Target
JL Audio CP208LG-W3v3 MicroSub™ slot-ported enclosure with dual 8" W3v3 subwoofers at Crutchfield