Eastwood Thermo-Coustic Sound Deadener Material
Product Review (submitted on January 9, 2012):
I installed this stuff in my o4 gt mustang. It has an off road x pipe with resonators as mufflers. To say the least it is INCREDIBLY loud! I just installed 5 sheets in my truck and drove my car around. It has eliminated the droning noise going at a constant speed! this product is definitely worth the money! I cant wait to finish installing the rest.