Crutchfield Customer Review (What's this?)
First time using Dynamat (or similar). Made a huge difference in the sound in my 2016 4Runner. Prior to installation, closing the door on my vehicle sounded like slamming the lid on a metal trash can - not anymore. Doors close with a Mercedes-like thud! Road noise was noticeably reduced. Applied to 4 passenger doors and I am planning to add more to the rear hatch and floor pan; maybe roof as well.