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  1. Home
  2. Car Audio & Electronics
  3. Car Subwoofers
  4. Custom-fit Subwoofer Boxes
  5. NVX BOOST Boxes
  6. NVX LVE-GM-SLVECG2-D12S

NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-D12S

For select 2008-2013 Sierra 1500 / 2500 HD / 3500 HD and Silverado 1500 / 2500 HD / 3500 HD Extended Cab - Dual 12" 800W RMS Loaded BOOST Sealed Truck Enclosure

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• Custom-Fit BOOST Sealed truck enclosure with 2 12" S Series Subwoofers
• Compatible with select 2008-2013 Sierra 1500 / 2500 HD / 3500 HD and Silverado 1500 / 2500 HD / 3500 HD
• 400 watts RMS (800 watts Peak)
• Final Impedance: 1-ohm

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2026-07-12 23:59:00
List price $443.99
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$359.99

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Current Promotions (1 offer)

Get the most out of your Loaded Enclosure with the NVX SDTK20. Eliminates road noise, quiet vibrations, and increase the sound quality and output of audio system, 50%. Simply click the "Add Both to Cart" button. This offer cannot be combined with any other coupons or offers.

NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-D12S

NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-D12S

https://images.sonicelectronix.com/images/5427831/main/sdtk20.jpg

40% off

NVX BOOST Box - 2008-2013 Chevrolet Silverado, GMC Sierra - LVE-GM-SLVECG2-D12S

$359 99

NVX SDTK20

$49 99

Priced separately $409 98

Promo Savings of $20 00

Total price:

$389 98

Description

NVX brand icon

Authorized dealer

Product Details:

  • Custom-Fit BOOST Sealed truck enclosure with 2 12" S Series Subwoofers
  • Compatible with select 2008-2013 Sierra 1500 / 2500 HD / 3500 HD and Silverado 1500 / 2500 HD / 3500 HD
  • 3/4" medium-density fiberboard construction covered with Carpet
  • Designed for installation behind the rear seat
  • Loaded with two NVX SMW12D4 subwoofers
  • Power Handling:
    • Peak: 800 watts
    • RMS: 400 watts
  • Final Impedance: 1-ohm
  • Carbon Fiber Reinforced Polypropylene cone
  • Butyl Rubber surround
  • 53 oz Y30 high energy Ferrite magnet motor structure
  • Frequency Response: 25 - 350 Hz
  • Sensitivity: 88 dB
  • Unloaded enclosure also available here
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Frequently Asked Questions (FAQ)

Universal boxes slide and block the floor of the 2008-2013 Silverado/Sierra Extended Cab. This CNC-cut enclosure fits precisely under the rear seat, providing a stealthy dual 12" setup while maintaining full use of your passenger footwell.
The 2008-2013 GM Extended Cab has extremely tight clearance. This sealed design offers 1.0 cu. ft. of air space for tight, punchy bass without requiring a seat lift kit, which a ported box would likely need to function properly in this truck.
The automotive carpet is durable, but moisture can seep into the 3/4" MDF and cause warping. To protect your box from spills or wet gear, we recommend installing an NVX all-weather floor liner to keep the mounting area underneath the seat dry.
No, your rear seats remain fully functional and can fold/lock as usual. To ensure the down-firing 12" subs don't create rattles against the floor pan, we suggest applying NVX SD126 sound deadening to the metal floor for a quiet cab.
Yes, adding polyfill can help the dual SMW subs "see" a slightly larger volume for smoother low-end extension. To maintain signal integrity for this deeper bass, use NVX XIV25 V-Series RCA cables for a noise-free connection to your amp.
The box is hand-assembled with high-density MDF to handle 800W RMS. To eliminate mechanical noise between the box and the truck, use the included mounting hardware and consider adding NVX silicone speaker baffles to isolate the drivers.
Yes, the VE-GM-SLVECG2-D12S is the unloaded version. It features a 4.75" mounting depth, though the loaded L-version is recommended as the air volume is specifically tuned for the pre-installed NVX shallow-mount 12" drivers.

Compatible Vehicles

Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

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Specifications & Details

Compatible vehicle types
Compatible vehicle types
Car/Truck/SUV/Van
Subwoofer Specifications
Series
S Series
Subwoofer Design
Round / Circle
Voice Coil(s)
Dual
Impedance (Per Voice Coil)
4 ohm
RMS Power Handling
400 watts
Total RMS Power Handling
800 watts
Peak Power Handling
800 watts
Total Peak Power Handling
1600 watts
Woofer Surround
Butyl Rubber
Woofer Composition
Carbon Fiber Reinforced Polypropylene
Sensitivity
88 dB
Frequency Response
25 - 350 Hz
Xmax (millimeters)
8 mm
Subwoofer Size
12"
Enclosure Specifications
Number of Subwoofers
2
Box Style/Shape
Vehicle Specific
Wood Thickness
3/4"
Number of Terminals
2
Terminal Type
Spring posts
Box Exterior Color
Black
Box Finish
Carpet
Final Wired Impedance
1-ohm
Type of Enclosure
Loaded
Box Type
Sealed
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details

Manufacturer:

NVX

Model Number:

LVE-GM-SLVECG2-D12S

Weight:

50.00lbs

Internal SKU:

lvegmslvecg2d12s

Internal Product ID:

204443

Customer Ratings & Reviews

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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