2007-2018 Chevy Crew/GMC Crew Cab 4 8" Underseat Subwoofer Box

Subwoofer Box Plans for 4 8" Subwoofers
Save Money! Build Your Own Subwoofer Box. These subwofer box plans are perfect if your looking to DIY! Plans make it a breeze! Dont waste Materials! Get BANGIN BASS!
Included- 
Downloadable Zip File
Multiple 3-D Rendering Images 
Specs sheet W/ Subwoofer and Enclosure Specs 
Professional Optimized Cut Sheet W/Parts List

Designed for 4 8" (2.5" Seat Lift REQUIRED)
Outside Dimensions- 55"W x 11"FH x 16"D x 8"RH (CentHump 15" x 1.5")
Enclosure is Based on Reccomended Manufature Specs
*May work for other 8" woofers and trucks user caution advised*