Okay, so I finally got around to installing the KOIKEY sound deadener in my car, and wow—what a difference! Here’s the lowdown:

First off, the material is super easy to work with. The adhesive backing is strong but not messy, and cutting it to size was a breeze with regular scissors. No sticky residue clogging up my tools!

I used it on the floor and trunk of my car, and the road noise reduction is insane. I can actually hear my music now without cranking it up to max volume. Plus, the car just *feels* more solid when driving—like I’m in a luxury sedan instead of my old clunker.

The heat insulation is no joke either. After a long drive, the interior stays cooler, which is a huge plus in summer. And yeah, it might even help with fuel efficiency since the AC doesn’t have to work as hard.

One thing to note: this stuff is STICKY. Once it’s down, it’s down for good. So measure twice, cut once, and don’t rush the placement.

Overall? 5/5 stars. If you’re tired of road noise and want a quieter ride, this is totally worth the effort.