SSV Works custom molded sub enclosure is designed for a 10 subwoofer and bolts into the open space behind the seat, clear of the cab. 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 are finished in a black texture coat to match Polaris textures and can be custom painted to match your color scheme. Includes grill, stainless mounting hardware and step-by-step installation instructions. NOTE: requires external amplifier. Not directly compatible with WP overhead systems. *Patent Pending. Not for use with 2016 Turbo models. Please call to confirm fit if you have aftermarket exhaust and header. This enclosure was designed to work with Muzzy Foot s headers and will NOT work with Trinity headers.