CustomLowz

CustomLowz www.customlowz.com DIY Car Audio Made Easy! Subwoofer Box Plans and Flat Pack Subwoofer boxes! The BEST subwoofer Boxes on the internet!

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07/21/2026

Subwoofer Box Plans for 3 Kicker Audio L7 12s in a ported box! www.customlowz.com

07/21/2026

Subwoofer Box Plans for 2 Sundown Audio ZV6 15s in a 6th Order Bandpass

For sale $500 shipped! 2008-2025 GM Crew Cab Dual 8s Subwoofer BoxPerfect fit for 2008-2025 GM Crew Cab NO SEAT LIFT NEE...
07/21/2026

For sale $500 shipped!

2008-2025 GM Crew Cab Dual 8s Subwoofer Box
Perfect fit for 2008-2025 GM Crew Cab NO SEAT LIFT NEEDED
Want to add some major bass to your truck! This is the solution. Built with cabinet grade plywood with a double layer baffle and added interior bracing. This box is ready to some serious bass!
Specifications-
Subwoofer Cutout- 7 1/2"
Subwoofer Flush Mount- 8 3/4"
Subwoofer Mounting Depth- 7 5/8"
Cubic Feet- 2.2 Net (After displacement)
Tuning- 34hz
Constructed of- 3/4" Cabinet Grade Birch
Exterior- Heavy Duty Scratch Resistant Black Bedliner with LED backlit Plexiglass accents
Comes with- 1/2" Heavy Duty Plexiglass Speaker Terminal with 2 Bolts for Ring terminals. (pre-installed)

07/20/2026

Subwoofer Box plans for 2 Sundown Audio ZV5 12s. Check out www.customlowz.com

07/20/2026

2 Sundown Audio Xv2 12s Subwoofer box plans. Get your own now at www.customlowz.com

07/19/2026

Subwoofer Box Plans for 2 Sundown Audio Xv2 10s in a 4th Order Bandpass. Get plans now at www.customlowz.com

07/19/2026

Subwoofer Box Plans for 2 Sundown Audio X10s. Need your own plans? check out www.customlowz.com

07/19/2026

Subwoofer Box Plans for 2 Sundown Audio U Series 12s! Need plans for your new build? www.customlowz.com

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Jasmine Estates, FL

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Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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