I took out my rear seats to drill holes on top of the rear suspension to be able to access the damper adjustment. Anyway, what are these metal sheets circled in red below? They very fragile in a way, they can squish easily (realized that the hard way), any ideas?

 

That's just to avoid rattle sounds.

 

I don't think so because if you press it it doesn't go back to it's original shape, it stays imprinted, it's a weird piece of metal it feels like putty when you push it

 

I'm pretty sure it's just cheap sound deadening material. It's squishy because it's either asfault of butyl based.

 

Yep... sound deadening material.
I installed lots of it in my '04.

Brand name B-Quiet, but there are many others... Dynamat etc.

 

i apologize for hijacking this post. InTgr8r, do they actually work; reduce noise? i am actually thinking about buying them online. i drive on hwy a lot, so i am looking for something that will help reduce road noise. thanks.

 

Yes, they work for sure. But remember, they add weight at the same time, so the "gains" are not "free."

The older stuff also required that the panel be cleaned, usually with acetone, prior to applying the material. That included removing any of the gooey stuff applied at the factory. I'm not sure about the new stuff though.

 

Sound deadening material.

 

Ahhh ok I guess it is then lol, it just freaked me out when I leaned against it by mistake and it squished, lol I thought I broke something

 

That's for sure....
They have made some improvements in that regard,
but you get a roll of this stuff & it's damn heavy!!!!

The new stuff is much easier to install, nowhere near the prep of the old stuff.
It's basically peal & stick, but it still does take time to install properly.

 

I spent a weekend using RAAMmat in the doors, trunk, and trunk lid of my 07 sedan. It definitely does work. E-ticket is right, most of the stuff is heavy. I was more conserned with sound quality and ride comfort and performance so it's no loss to me. If you want the full gains you either want to take your time and do it right, or pay someone to do it that way. I think if you just slap some on here and there, like they do at the factory, you're just wasting your time and money.

 

Ya, good to know. The old crap used to require a heat gun (not hair dryer, heat gun) in order to activate the adhesive.

In essence, you have to do the entire car, including inside the doors behind the window glass, in order to get the full effect. You can do spots here and there to reduce vibrations (from say a subwoofer), but other than that, you don't get the full effect.