3rd generation subwoofer enclosure for select Maverick X3. Fits under front driver or front passenger seats with complete up-and-down travel of seat adjustment. New suspended mounting design provides optimum clearance between floor-board and subwoofer enclosure for optimum down-firing bass response. Preloaded and prewired with a derivative of the M2D2-10IB Element Ready™ subwoofer. Refer to our COMPATIBILITY chart to verify fitment before purchasing. Not compatible with Maverick R.