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277 Posts
No, dynamat is a waste of money. I've used at least 4 different brands including dynamat extreme, but now I only use Jiffy seal and tin foil from costco. It costs about 4x less and does the exact same thing. It feels the same, applies the same, looks the same, but costs way less. see here for more info when I put it on my crown vic 2003 Crown Vic. The other stuff I used on my mortorhome is here. Soundproofing the cab and doghouse