Looking to soundproof your entire car? But don't have the cash to drop $160.00 dollars on Dynamat? We stock the solution. The Audio Barrier bulk kit is $99.95 opposed to the Dynamat 10455 price of $310.00. Audio Barrier is made from the same Butyl rubber Dynmat uses and is actually thicker! (cheaper damping materials are usually made of asphalt) If you don't want to pay for the words "Dynamat" on your sound damping go with Audio Barrier, the lower priced alternative that will do a better job.