Firewall Insulation: Factory, Aftermarket, or Both?

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dibbons

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Does one choose between using the black chipboard/yellow insulation factory type stuff or the aftermarket foil/rubbery stuff (Dynamat, Thermo-tec)? OR if one has them both on hand, double up and install both (one on top of the other)? I need to prepare my strategy this coming week. Thank you.

yellow insulation.jpeg


dynamat.jpeg


thermo-tec.jpeg
 
Factory is what I would do. I had a car that came for repair. Getting that dynamat off to do repairs was next to impossible.
 
DTM sells some great factory stuff. And they have the push pins too that attach it. Jim at detroitmuscletechnologies.com will take good care of you. Tell him Kenny & his 72 Dart sent you. He will know me very well.
 
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