Insulation and / or dynamat?

[comet_666]

Should I get both? Do I need both?

[ODZKing]

I used duct wrap from Lowes.
See http://www.dodgecharger.com/forum/index.php/topic,68701.0.html

[comet_666]

How is the sound deadening with that?

[ODZKing]

How is the sound deadening with that?

It's not a Lincoln, but I would have to say pretty good. The heat factor was excellent though.  What a difference.

[fy469rtse]

I vote for both ,  , did it in my last charger, and the difference was enormous , comfort level , huge increase, I half put both in car I'm doing at the moment, side benefit floor carpets seemed easier to fit ? Don't forget to line inner doors with dynamic mat, to skin of door the most benefit