Down4Sound 320 mil Sound Deadener - RillaMat - 18 sqft

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d4s-320mil-18 sqft
  • Down4Sound 320 mil Sound Deadener - RillaMat - 18 sqft
  • Down4Sound 320 mil Sound Deadener - RillaMat - 18 sqft
MSRP: $129.99
— You save $15.00

Out of stock

Frequently bought together:


Down 4 Sound 320 Mill Sound Deadener 18 sqft Acoustic Foam 3 in 1

  • each sheet is 11 x 22
  • 11 Sheets
  • RillaMat 5XL the THICKEST Basshead Deadener in the World.

Made from the highest quality components, Butyl Rubber, aluminum and Foam

Before applying deadener, ensure the area is fully clean; we suggest using 80% rubbing alcohol. Once thoroughly cleaned and dry, apply sheet, and roll.

If applying in cold weather under 60 degrees, use a heat gun to apply or warm the area.

Watch out for airbag sensors and fastening holes for interior panels.


Warning this product may cut you, use safety gloves.

We are not responsible for any damages or cuts or applying errors.


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5 Reviews

  • 5

    Good stuff used it on my trunk 2014 challenger heavy duty mats nice clean bass with no rattle 2 sundown audio sa 12 classic d4s profab enclosure 1 ohm to jp23 v2

  • 5
    Great product

    Awesome product and is real thick and thought it would not form right but was wrong and it went on with ease. It does what it was suppose to and stopped the rattles and bass sounds so much better and would buy again.

  • 4
    Pretty good, nice and easy.

    I used this for a roof install I worked on and it worked pretty good, the rubber needs to be heated with a heat gun if you want it to stick to the roof. It is on the heavy side. For the price, it works fantastically.

  • 5
    Best sound deadening ever

    I wish there was some Godzilla kind too. Nice good quality.

  • 5
    Great product, very good quality battery

    Worked as good as other deadener but this stuff has cool graphics to add to the look, which is awesome!

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