New Bidirectional Design fits under front driver or passenger seat locations. New suspended mounting provides optimum clearance for down-firing subwoofer. Roto-mold design for lightweight and durable seamless construction. Direct bolt into vehicle using OEM mounting holes. Complete stealth install once mounted.Compatible With Select X3 Models. Non-Missouri residents will need to pay IN PERSON (credit/debit cards only) within 4 days after the listing ended. Paid items must be picked up within 10 DAYS after the end of the listing. Social distancing policies WILL be enforced during pickups. This applies to both the item and retail packaging.