SSV Glovebox Sub Woofer Enclosure (Polaris RZR) By UTV StereoSSV Glovebox Sub Woofer Enclosure (Polaris RZR) By UTV Stereo 10" Sub Woofer Enclosure designed to replace glove box. SSV Works custom molded sub enclosure is designed for a 10" subwoofer and easily installs and replaces glovebox. Just simply use the factory glove box door! NO CUTTING REQUIRED, the box simply bolts in and provides the proper airspace required for a 10" woofer. They are 100% fiberglass for the best sound quality and bass response. They