Dynamat is expensive so I bought this stuff which is WAY cheaper. It comes in 6" x 25' (12 sq ft) and costs about $17 from Home Depot. Very sticky stuff. I worked on the trunk area for about 3 hours and almost finished it. I just have one more wheel arch to do. The back area sounds quieter but really I need to do the doors and the front area in order to make a real difference. I noticed a lot of road noise from the front tires and it resonates through the rest of the car (stupid OEM Dunlops probably don’t help either). The tinfoil tape is mainly to cover the seams where the tar tape seams meet. Here are some pics so far.





















