Post by
K03sport »
https://forums.nicoclub.com/k03sport-u129071.html
Mon Jun 01, 2009 11:52 am
sounds like it was just a rubber mat that is used for sound deadening.
Companies like Dynamat make similar materials for universal application. They usually come with a foil barrier to also help reflect heat.
Here is a link to their catalog. I think you are looking for something similar to Dyanliner or Dynapad. But be forewarned, Dynamat is proud of their stuff and this can get expensive.
Other companies make a similar product geared toward car audio, but I'm sure there is non-car audio focus material out there.