So I purchased some Mass Loaded Vinyl about 70lb roll, and many CLD tiles from sounddeadnershowdown.com, some butyl strips too. The doors I followed his directions, stuffed butyl in between the side protection beams and the sheetmetal. I attached CLD tiles to cover aprox. 25% of the sheet metal. This was really easy and made a HUGE difference. I didnt buy any closed cell foam but installed a layer of MLV inside the door plastic in all 4 doors. Did not do the hatch for the added weight. I layed MLV under the rear seats too. And each time I felt that it made some difference in the quietness. I have a 5 speed and hated hearing the noise from our plastic shifter bracket. so I insulated it too. also attached MLV on the cover and the top to seal the sound in. This was a nice one! I barely hear my shifts now... one of my favorite!Then I added some MLV inside the window wiper motor channel. where our intake vents for the cabin is. The channel has NO factory deadening and its next to the engine. I applied some CLD tiles and layed MLV... Another one of my favorite! this made a big difference in engine noise. I still have lots of tire noise, so I added MLV inside the wheel well. about 8-9 inch strip and attached it from the bottom to the strut area, but this mod didnt make much of a difference. I guess the noise is coming thru the floor? I wish I had a way to measure the db but since I dont its all just subjective opinion... I am happy with the results so far though... here are some pics.yohei
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