KILMAT 80 mil 36 sqft Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

Used these to settle down the vibration on my hood, trunk lid, etc. after I changed my OEM engine mounts to less squishy custom mounts. Highly recommend.

Im never 100% sure how well this stuff works, Ive purchased name brand and off brand and never felt like it was a night and day difference, but then again I rarely do a whole car in one go so its more of an incremental change. Does a great job taking buzzing and rattling out of panels for sure, and seems to somewhat improve bass clarity, but I dont know that it does much for road noise etc.

Great product easy to work with and install! Follow the directions and use the correct tools its a No Brainer

Excellent product. Easy to install and mold to space. Noticeable reduction in noise. Very pleased with result.

Very easy to work with and great adhesion. You will need the Norsmic roller to make this job a success. No smell at all. Installed in the rear trunk of a 2015 Kia Forte which sits low to the ground and absorbs a lot of road noise. This quieted things down I would say 90%. Makes for a quiet ride and helped with sound quality as having a subwoofer in the trunk it kept any rattling from happening. Perfect purchase, I am very happy

My girlfriend installed this in the doors of her 2019 corolla hatchback. You can hear a difference before and after by knocking on the outside of the doors. She also said the car is quieter while driving since the install. Less road noise, etc.

My truck is just about as noisey as they come, while I wasnt jumping for joy to do the actual job of installing these, ill tell ya - pretty big difference. After the install i remember my first drive thinking whats wrong with my truck? it sounds... weird - what was weird was that it was quiet! Installing these is a labor of love. Find a nice fair weather day, some shade and put on some tunes and just get it done, if your car is noisy this is your solution. It goes on easy and has so far (1 year+) held up great, I have had to remove my door panels to install new mirrors and took a peek inside and its all held up the same as the day I put it on. I ended up doing nearly my whole SUV, interior, firewall, all 4 doors, the back bed/trunk. Made a huge difference, would do it all over again if I had to. 5/5

Worked pretty well for quieting my car down. It’s easy to cut to size and to apply, and I didn’t notice any smell. Id say I went for about 60% coverage and ended up using about 1.5 of the 3 boxes I ordered.

Car is noticeably quieter

I bought these for my noisy 79 Trans Am and they are great! Easy to apply and easy to cut. Drastically improved the noise level inside my car. Would definitely recommend.