80 Mil 36 Sqft Sound Deadening Mat | Car Dampening Material | Deadener Insulation, Black, Grey

Single layer on my doors resulted in 5db external noise drop. Better results than expected

Quedo bien beuna calidad, fácil de instalar

Tried to sell a lower quality product compared to the description

Let me start of by saying WOW! This made a huge difference in the SQ of my L7S pushing 930w rms. Before I had major rattles in my 2020 Honda Civic SI. Taking the time to do this to my trunk and Lid made me realize just how loud my subwoofer actually is. It literally eliminated the rattles throughout my whole car. I still plan on doing this to my doors and rear deck but once I upgrade the speakers. I still have half of the box just doing the trunk and lid so 1 box of 36sf will be enough for most of the areas that need to get done. You may need a little more overall. This is true 2mm spec. Very sticky and easy to apply. It just take time to finish the work correctly and roll it down. It is not as heavy as I thought it was going to be. The size of the sheets are perfect for what you need to do. The value is on point for the quality. It does not rip very easily but you can cut it to size without any problems. Again, This is a must buy for anyone who is pushing 1000w rms or more.

I've put this in 4 trucks now. A 2005 GMC 2500 Duramax crew cab, a 1995 F350 Powerstroke crew cab, a 1979 F150 single cab, and most recently a 2005 F250 Powerstroke crew cab. All of which got insanely quieter. The 2005 F250 went from having to have the radio at 17 to hear it and 33 to jam out to music before the siless, to 11 to hear music 24 to jam out. I did also use the Siless 157 on the floors. Installation was a breeze. I recommend getting a 3 pound sledge hammer and use it like a rolling pin to help adhere the mat to the metal. It keeps a great seal around the whole vehicle. I don't know that I noticed much temperature holding difference but sound for sure. I used 3 boxes on the crew cabs and did the floors, doors, pillars, roof, and firewall with the 80 mil and added 157 mil on the floors and back wall and in the sub box.