Is this stuff as good as Dynamat for sound deadening in my car?

[JakeKleine]

http://cgi.ebay.com/100-New-asphalt-Sound-Deadener-Deadening-Quiet-Mat_W0QQitemZ250549320047QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item3a55e7396f

 

[Matt]

Go for dynamat xtreme, or second skin.

 

[wooferman]

Look at RAAMAT or Second Skin.