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NVX SDBTK20 Premium Stealth Black (Open Box, Good)

Trunk Kit - 20 Square Feet of Premium Sound Damping Material (Sound Deadening) - Five 18" x 32" Pieces (91mil THICK)

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• Eliminates Road Noise
• 2.3mm (91mil) thick for better performance
• Quiets Vibrations
• Stops Rattles • Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Five 18" x 32" Pieces

Learn more about the ls-sdbtk20-u7

We apologize

This item has been discontinued

Product Highlights


• Eliminates Road Noise
• 2.3mm (91mil) thick for better performance
• Quiets Vibrations
• Stops Rattles • Increases SPL
• Reduces Heat
• Simple To Install
• Easy To Form Aluminum
• Four Step Peel and Stick Installation
• Five 18" x 32" Pieces

Description


NVX brand icon

Authorized dealer

Item Condition - Open Box, Good:

This product is used, but it will work like new and is in overall good condition. It will show signs of wear that can include scuffing, scratches, fingerprints, dents, and worn corners or installation marks. May be missing non-essential parts, accessories or original packaging.

Sound Deadening 18 By 32 Inch Pieces
Increases Sound Quality No Filler Easy Installation
Butyl Rubber And Aluminum Foil

Product Features

  • Five 18" x 32" Pieces of Sound Damping Material
    • 91mil thick (2.3mm)! There are cheaper, inferior solutions at 50-80mil, but we do not recommend that thin of a solution as it will not perform as well.
  • 20 Square feet total
  • Vehicle/car trunk sound damping kit
  • Made from 100% Butyl Rubber
  • Eliminates road noise
  • Quiets vibrations
  • Increases sound quality and output of car audio system
  • Stops rattles
  • Increases SPL
  • Reduces heat
  • Easy to form aluminum conforms to desired area of vehicle with ease
  • Four step peel and stick design for easy installation
  • Up to 30% thicker than the leading competitors
  • Dimensions (each piece): 18"L x 32"W
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Specifications & Details


Sound Damping Specifications
Installation Location
Trunk
Total Amount of Material
20 square feet
Material Use
Sound Absorber
Secondary Use
Vibration Dampener
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

SDBTK20-2

Weight:

18.00lbs

Internal SKU:

ls-sdbtk20-u7

Internal Product ID:

214857

Product and How-to Videos


  • Eliminate Shakes & Rattles in Your Vehicle With NVX Stealth Black Sound Deadening Material
  • How To Install Sound Damping in a Car | NVX Audio & Mitsubishi Evo 9
  • NVX Audio Sound Dampening | Test & Installation Demo

Customer Ratings & Reviews


NVX SDBTK20 Premium Stealth Black (Open Box, Good) thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

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Nvx sound deadener

This stuff ranks high against other sound deadeners. Looks good with the black face

By Brent on October 2, 2025 Checkmark Icon Verified purchase



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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.