Fits 2005-2015 Toyota Tacoma Double Cab Forward Firing Design - Fits Behind Seat Plastic Trim Behind Seat Needs Removal Brackets on Cab Wall Needs Removal Speaker Grills Recommended Hole cutout for 8" Sub: 7 1/8" Hole cutout for 10" Sub: 9 1/8" Subwoofer Mounting Depth: 5.375" (optional 6 .00") Mounting Depth based on 6.00" diameter magnet Subwoofer Airspace: Approx. 0.65 cubic ft. Per Sub/Side Made with 0.625" MDF Speaker Wire Terminals: 1 Per Subwoofer Box Type: Sealed Box Box Finish - Carpet Subwoofers & Amps Not Included Hole Cutouts adjustable per request Alpine R subs will not fit due to it's large magnet/casting Subwoofer Mounting depth based on the most common size subwoofers. Some Subwoofers with oversized framing/magnets may not fit without modification. If you're using a subwoofer that is close to the max specs please contact us for fitment confirmation.