For a while I was seriously considering replacing the pathetically underpowered BOSE subwoofer in my 6. I went to a local car audio shop for some advice on what to do about it and he gave me two optioins: a $100 one and a $500 dollar one. I could afford both because I'm 16 and worked for about 3 months over the summer and did not have to pay any bills :nana: But, being conscious of my money I decided to try the $100 opiton first: Dynamat, fatmat, edead...whatever you want to call it....SOUND DAMPENER. Anyways, I put one layer of edead v1se and one layer of fatmat on every surface possible in the trunk area and inside all four doors of my car. When I got in and cranked up the somewhat pathetic BOSE system, an immediate smile came onto my face. The $100 solution had worked and let me tell you...people have seriously thought I have had aftermarket subs in my car. The base is unbelievable. Now don't get me wrong, 2 12" subs would hit harder than the BOSE one but not $400 harder! Anyways, I just wanted to post this because when I was looking for some guidance on this issue, I was unable to find any testimonial type discussions to make me confident my money would be well spent.