Subwoofer Box Plans for 2020 GMC Sierra 1500 Crew (4) Sundown Audio Xv2 8s
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 2020 GMC Sierra 1500 Crew (4) Sundown Audio Xv2 8s
Does it require a seat lift?- YES 2.5"
Tuning- 33.3hz
Enclosure is Based on Reccomended Manufature Specs
*May work for other 8"woofers, user caution advised*