So i've been reading about the products from
on all the audio forums for a while and I was intrigued by his theory on how to sound deaden correctly. Well I decided to order and I have to say this stuff is awesome. It's easy to apply and works great. I did my doors for now and I only ordered 12 of his CLD tiles and a 15' roll of his butyl rubber rope. He has closed cell foam for sale but I just bought sleeping bag foam sheets I found on ebay and used them as a top layer for a sound barrier. Resonance and road noise is greatly improved. The music is definitely louder and clearer. If anyone is thinking about sound deadening their vehicle. I strongly recommend these products. Here's some pics of the products and the install.
2008 GMC Sierra single cab
Kenwood Excelon KDC-x492 HU
Polk DB651's in front doors
Polk MM840 8"
T.M.A. 320.4 amping the front doors
Rockford 4 gauge
Monoprice RCA's(great place by the way for quality cables for cheap!)