Which of these is a better product. I want to soundproof the entire interior/trunk/doors/ceiling of my mustang. I don't mind spending the money. I just want the best quality. Any advice. Thanks,
I was also wondering about the same thing. I have had dynamat before the majority of it that used psa started to come off. I thing the extreme was the only one that didnt but it had a horrible smell that takes months to die off and resurfaces when hot
Im going with edead though because price is an issue with me if you cant get any advice here just try and find out what material is best for your purpose and see who makes theirs out of that