rossman Posted January 3, 2016 Share Posted January 3, 2016 I need help deciding whether to keep the stock firewall insulation or replace it with sound deadening material. I have the dash out of the car to install a VintageAir Gen-II Mini and gauges. It's a good opportunity to replace the insulation *if* replacing it quiet down the interior *and* provide just as good or better thermal insulation. It it were falling apart it would be a no-brainer but it's actually in decent shape and I haven't noticed any excessive heat so it's apparently doing its job thermally. So the question is, should I remove all the stock insulation and replace it with a layer of RAAMAT and couple of layers of Ensolite or should I just add a layer or two of Ensolite and call it good? Quote Link to comment Share on other sites More sharing options...
socorob Posted January 4, 2016 Share Posted January 4, 2016 Mine fell apart when I tried to take it out, so I sprayed a couple coats of lizard skin heat and sound on both sides of the firewall while the engine was out. Don't notice any heat coming through, so I think it works well. Quote Link to comment Share on other sites More sharing options...
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