Can-Am® X3 Low Profile Front Passenger Side 10” Sub Box Enclosure – Unloaded | UTVS-X3-ENC-LP-FPASSUTV Stereo has designed a 10" sub box compatible with the Can Am X3's front passenger lower seat height position. This box will fit both two and four seat models and provides a solution when fitting aftermarket seats that could obstruct taller sub enclosures. Lowering seat position to the OEM bolt is possible with this sub box. *Made in America with Expanded PVC Plastic AKA "Plastic MDF". Specifications: Airspace : . 45 cubic ft. Mounting Depth: 4.