Adds a little weight but you are right on.
The difference has to be experienced to believe!
So far I have just done the doors but I feel like I just got my first tattoo I want more. Thinking about dynamating the rear deck lid and trunk just to make the interior even quieter in the cabin. My sound is awesome, but, just looking for a little less ambient noise. The cabin the new mustangs was loud. I included an RTA spectrum analysis I took while on a particularly bad highway BEFORE installing Dyanamat. I will provide a post as soon as I get back out there.