what are you guys using for insulation/sound deadening?
 

I most frequently see people using dynamat in the build pics, but are there any other options? Anybody using secondskin?

Thanks guys!

I own a stereo shop and those are the 2 brands I'd recommend. Cascade is also good stuff, but if I had to pick a single company to support I'm a Second Skin fan all the way.

thanks! that also seems to be a little more affordable than the dynamat.

anyone know about how much I need for the floor of a first gen camaro?

we use dynamat and so does our audio shop. They routinely come in 1st or 2nd at most the shows they go to which are mainly sound quality competitions.