Second Skin Luxury Liner Pro - 2 in 1 Sound Insulation for Cars - Mass Loaded Vinyl and Closed Cell Foam - MLV Noise Barrier Made in USA (1 Sheet)

This stuff works awesome! So far I've only added the luxury liner pro on the whole driver side floor over dynamat extreme. I also put under drive seat, I took the seat out and lined all down the seat bracket on front side and back side then cut a slit on each side for the seat bolts to screw in through the pad back into the frame. And it oversatisifed me! I drive a 13 Camry and it now feels like a high end luxury car. Can barely feel any bumps in the road what so ever, even at 90 mph can hardly feel or hear anything! If done right I highly reccomend! Doing trunk in the near future! Also from what another post said, yes the ends dont meet with each other but it's only like a quarter of an inch on each side, not a big deal what so ever very easy to cut to whatever suits your needs. And no it has no smell to it at all, or atleast mine didnt. But what did have a very big smell was the adhesive spray that I used. Not much of a bad smell over like a day or so it kinda has like a new car type smell to it. Not sure of the brand I used it wasn't what they offer i found it somewhere else but sure it smells somewhat of the same

Been using this stuff for about ten years. It's fantastic, provided you know what it's for. You're never going to soundproof a vehicle. Dynamat and those products are to deaden the sound, the LLP is there to block as much of what's left as feasibly possible and it works when it's placed effectively. It's very thick so be prepared to have to finesse the reassembly of whatever you took apart.

I have a 2021 Chevy Tahoe. Normal decibel level was 70-73 db without any sound dampening. I drive a lot and on louder roads so this was hurting my ears and causing me fatigue. I Put this under front floor mats, laid it on floor board in 2nd and 3rd row and then 3 strips across the back cargo area when 3rd row seats are down. This is perfect for dampening sound on floors and trunk. In addition to this I insulated doors with a stick on lighter closed cell foam product. It lowered overall decibel levels to 64-67 on the same roads. Major difference in ride quality.

This stuff is thick and seems to work well but is expensive for what it is. Metal tape adheres to it just fine. Can cut with scissors. Installed this in truck doors and seems to cut down on noise.

Seems to be good stuff. Wish I'd have done more research first though. I cut everything out to replace my vapor barrier on a door panel. 3M Dual lock held it up without a problem. The door panel itself didn't even come close to properly seating again though. The product is just too thick for my application. So while it seems to be good quality, I unfortunately wasted a lot of money on something that will not work for my application