Quote:
Originally Posted by carlgorski
I am sure it helps with heat but what about sound?
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Yes. I downloaded decibel meter app to my phone and measured sound at driver seat while reving engine to 1,500 rpm before and after. I think the difference (improvement) was worth the minimal cost of material. Haven't been on open road yet though. We'll see. Worst cases scenario, I add another layer. Good luck.
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